Labyrinth of Chaldea.

A/N: I swear every first few chapter of a fanfic I wrote, I end up hating it. I can never make a good beginning and mess up a few lore. Although, I can sum up Avalon having leftover energy to heal Shirou without Saber.

Anyway, WHOO! Rolled Moriarty(NA) and Waver(JP), recently grailed Skadi and close to a bond 10 Okitalter. Sadly, I can't play as much because I got my phone taken away and an emulator has it limits. This really sucks.

EDIT:3/15/19 7:22 PM Western Time: Okay, WTF. I swear my mind make me accidentally skip a few words and even entire sentence. And maayybbbeee some crucial details like how Olga soul got bonded to a puppet.

I walk into the part of Chaldea that has been closed off.

There was only one casualty in the second explosion and it was directed toward her.

Gray.

She is alive without a doubt. If she wasn't than this walk would be to pay my respect. I just want to observe the damaged done and see for myself how her survival was met to be impossible.

I approached a broken metal door covered in yellow tape. It fell over with a loud metallic thud when I only touched it. There wasn't a reason to put out the fire. The explosion opens up the ceiling to allow the subzero arctic weather in.

The frigid air instantly bit into every part of my body from fingertips to the chills running down my spine. I wrapped my arms around my armpit and inspected the damage.

I still can't believe the man I met at the elevator would do such a thing. It's a jarring disconnect from the monster we fought and the man himself.

Flashback

"So Senpai," I asked awkwardly, "What drive you to attack him?"

"Senpai?"

"You are an experienced master and Magus," I explained," If I have to stay alive, I need to follow your example. I'm still trying to understand all these magecraft, servants, and magic stuff!"

"Fine," He rubbed the back of his head," Ironically enough, Knowing less can make magecraft stronger. From my time in the Clocktower, One wrong move can have you framed and killed. Even if it's for good intent. That's why you have to be prepared when meeting anyone you don't explicitly know. There a lot of slimy Magus I met and some who are decent people. Of course, the easiest one to trust is the one that isn't considered a true Magus."

"Does this mean I should trust you?"

"Should you?", he said cryptically.

I was about to walk away when I hear the sound of papers flapping in the wind.

A manila file folder barely holding on against the elements. It is slightly burnt on one corner and kept from being part of Antarctica by a steel beam.

I should leave it alone but what secret could it hold?

No, don't do it.

I could walk away or hand it back to Gray. If it's Clocktower related, peeking inside it could be suicidal. Gray seemed like a nice girl, but I must be careful.

I sighed and headed to the Rayshift room.

I turn back around, headed towards the room. I got down and slowly wriggle the folder out of the steel beam. Luckily, only a small section was being pinned down. Once I got it free, I ran back to my room with the folder hidden in my uniform.

One Day Later

She got out of bed with a tired yawn. The director stretched her body and heard creaked and cracked. It felt unnatural, but in her mind, she was too tired to care.

"What a weird dream. Lev betraying me and everything that could go wrong want wrong? ," She asked herself, "Why am I naked?"

The director walked over and pouted in front of a wall mirror. She immediately got prepared for the day ahead.

The eerie feeling that she was looking at someone else body didn't elude her.

She walks into the bathroom and took care of any other morning business.

Yet, She can't get over how odd her body feels.

Once she was done, Olga walked in front of the wall mirror and rehearsed.

"Back straight, clear throat, and maintain a serious expression," She breath in and clear her throat, "As Director-."

"Director Olga," Da Vinci announced on the speaker," Please report to the cafeteria ASAP! We have urgent business."

"Da Vinci!", She growled," I'm in the middle of rehearsal! He knows that!"

The director put on her shoes and stormed out of her room.

"This better be about today's batch of Masters!"

Olga strolled toward the cafeteria making sure to maintain the right composure. She doesn't want to slouch or trip on her own toes.

"Why does the place feel so empty?", Olga voice echoed, "And so cold."

She was at the front entrance of the cafeteria and could smell the cooking inside. It was a strong aroma that can enchant.

She pushes open the door.

"WELCOME BACK DIRECTOR!", Everyone cheered.

"Those that are still here are glad that our Director, the heart and soul of Chaldea, is still with us," Da Vinci smiled.

"Th-this is...," Olga was at a loss for words.

Only 25 staff members are here and several servants with Masters.

Olga's eyes wander toward the servants and Shirou, three of which are wearing apron and hairnet.

"Servants...So it really did happen," She whispered sadly.

Several lunch tables are placed end to end with one another to create a buffer area while the rest seated the remaining Chaldea residents.

The food is varied, but they all came from the Chaldea shortage room. The food could feed four hundred staff, masters, and servants with room to spare. Chaldea has several greenhouses and many facilities that were meant to support it, members, if delivery from outside is delayed.

Now that the population of Chaldea been reduced. The survivors can continue on as long as power exists within the facility.

Thirty staff members.

Four Masters.

Eight Servants

One pet.

Before the start of Chaldea first Singularity.

"Can we eat now Shirou?", Saber Lily salivated.

"That sandwich looks appetizing," Sasaki eyed the tray of sandwiches stacked in a pyramid formation.

"What about the France delicacy I made?", Sansom pointed out.

"The director already here everyone! Don't stand around!", Romani grab a plate of sweets, "Eat up!"

A hand reached out to intercept the doctor plate.

"Doctor, it's preferable you eat real food before the dessert!". Da Vinci explained.

"But she gets to eat it!"

The doctor pointed at Saber Lily as she filled up a small bowl worth of mini-heart attacks.

"Ahem!", Shirou stood behind her still in his cook hat and apron." Bad Saber."

"B-but Shirou!"

"Food first Saber," He lectured.

"Okay Shirou," She pouted.

"Fine, Look if you're still hungry," He smiled warmly," I'll make some more."

"Thank you, Shirou!", Saber Lily hugged the chef.

Ushiwakamaru approached with a pink apron over her usual attire which isn't covering much, to begin with.

"Artoria," She was currently eating a plate of mash potatoes, peas, and gravy," I never have these mash potatoes in my lifetime. There delicious! Here try some. Hey? Are you okay?"

Saber Lily and Add, who was across the room with Gray, look at Ushi plate with a thousand-yard stare.

"Why do I have the sudden urge to smack someone over their cooking," Add mumbled to himself.

"Why do I feel nauseous," Gray rub her head and look at Saber Lily and back at Shirou, "Curse Avalon."

"Careful Gray," Ayaka calmly place a plate and small bowl on the table," The doctor said you can't eat solid food yet due to internal damages."

Gray nodded in thanks and wanted to speak.

"Your voice is still raspy and if you don't want Add to speak on your behalf."

"LADY! I'm an excellent orator!", Add snapped.

"Let me handle it."

Gray nodded again.

"Master Shirou," Ushi asked," I think Saber Lily is-"

"I made the mash potatoes," Shirou said.

"Oh right, forgot! I'll take all of it."

"It's for everyone Saber."

While everyone was enjoying the food prepared by Shirou, Ushi, Sasaki, and Saber Lily, Olga Marie continues to observe and take in the party.

"Why are they all wasting time like this? How wasteful...But after everything that happens, they deserve a break," She calmed herself," Well then, Let celebrate. I'll permit it."

The director smiled.

Except, if anyone has a keen eye could tell that smile is fake.

"Olga," Da Vinci waved," Come over and enjoy the party."

"I will," She walked toward the table seating the Doctor, the remaining masters, and Da Vinci.

The Director sat down.

"Have anyone see Fou?", Mashu sat next to the Director," Director? Why don't you grab anything to eat?"

"I'm not hungry," She scans the room, "Fou is with Saber Lily. Hmm? Where is Ritsuka?"

Saber Lily was giving the fluffy pet a belly rub.

"You are so cute!",She squealed happily," Your fur is like Merlin's hair!"

"Kya Fou!"

"I dunno," The doctor spoke with a mouthful of food. He was devouring the delicacy like a starving wolf.

"You're happier today Director," Da Vinci asked even if she can tell it's a mask, "What changed?"

"I'm happy to be back," She looks at her hands," Is this a homunculus body or a puppet."

"Puppet," Da Vinci promptly answered," It's unfortunate that we couldn't recover your magic crest."

"I see."

"But the great news is that you now have the amplitude to Rayshift and once we run some test, possible Master potential," Romani added. He felt odd that Olga taking the news that the accumulation of her family magecraft was destroyed with an unmoving expression.

"Great."

Another neutral reaction.

Mashu, Romani, Ayaka, and Da Vinci can't help but feel shocked. Weeks before the arrival of the other Master, She raved with both tears and angry over her lack of Master potential. It was an entire scandal back at the Clocktower over the matter.

"I know the past few days have been overwhelming for you but don't think for a second we doubt you," Shirou added.

"I know," She sighed, "I just can't process how we can carry on at this state."

"Find an assistant," Ayaka added," Someone that acts as a vice-director."

"Another Director?", She thought aloud," If we're going by the current chain of command and seniority, It's Roman."

"I did assume control," He nodded," But I'm also the Doctor, and when a medical emergency happens, I would be needed at my post."

"I'm not the best choice because I got my own research to take care of," Da Vinci added," Ayaka already doing triple duty as my test rat-eh-Lab assistant, a backup Master, and helping with Gray recovery."

"I know you're all concern about my stress level," Olga argued," My duty is my alone. I'll only Rayshift when the unspeakable happens. If every last master is unable to carry on. Otherwise, Chaldea chain of command would be in disarray. Ayaka, I'll let you stay behind unless additional masters are needed. I'm still hoping Gray can make a full recovery. My biggest fault was sending everyone in all at once, and even if the chance of another traitor is nonexistent, I don't want to take that risk."

'And besides,' A dark thought cross her mind,'My two father figures are nothing more than demons in human flesh. I don't even know who trustworthy.'

Olga's eyes wander toward Romani.

'What am I thinking? My father trusted the doctor, and he helped take care of me when I was a child. Yet, I can't help but be suspicious.'

She looks over to Ayaka.

"What about the other masters?", Mashu said.

"Avalon," Olga looks at Shirou, "Could it repair the brain?"

"To some extent," Shirou added.

"Plus, Calling it a coma is a placeholder name for one complication," Roman elaborated," The other masters are missing their souls. The bomb went off mid-Rayshift. Even if the body and mind are saved, it will rot away without a soul."

"But what about Mashu and Shirou?", Ayaka eyes widened," Could the same happen to them?"

"Mashu and Shirou were the last two to be Rayshifted," Da Vinci added," Any sooner and they would have been in the same state as the others. That what I gather from the data recovered on that fateful day. I theorize those souls are under a state of limbo. Maybe in each Singularity just like what happened to the Director."

"So how are we suppose to save them?", Mashu voice trembled.

"I-I don't know," Olga spoke lifelessly," As long as the body is fine, We will find a way to recover the souls."

"Director I would like to ask about two requests," Shirou spoke calmly," I need access to the stasis pod room, I need to get Avalon into my sister body. She'll die without it."

"I understand, access granted," She nodded, "What the second?"

"Thank you," Shirou smiled," My next one shouldn't be too much trouble. I'm going to look for Ritsuka. He has been gone for a while and I'm getting worried."

"Granted, I doubt either of you will cause any trouble."

Shirou took off his chef hat and apron. He headed directly toward Ritsuka last known location: The ruin of Gray room.

The subsector of Chaldea can be described in a single word, a labyrinth. It wasn't easy to reach either as Ritsuka extrapolate the info from the document. All best, He has to go on pictures and maps to figure it out.

It took riding off the elevator at the lowest floor and somehow bumbling around the water flow control room to slide behind a secret passage with poor lighting until he reaches a white hallway with a steel door.

Ritsuka stood in place, his senses telling him to run.

A feeling of dread overtakes him when he checks his smartphone.

"No signal."

The room ahead held a sign that read 'Authorize Researchers Allowed'. He looked closer at the door and shuddered. He squinted his eyes to see what look like bloody fingerprints.

He tries to call on one of his servants mentally.

No luck.

It even felt like his connection to them is faint. His servant may or may not feel the same way. Chaldea supports all the servants within the facility meaning they're not relying on his prana. It is likely if something happen to him here, it would be impossible to contact outside him.

He could use a command seal. Ritsuka toy with the idea.

"Chaldea plumbers must really have a hard time in this place," He joked to himself in hope of relieving his foreboding fear. The sweat on his forehead and clammy palm froze him in place.

The door makes a loud screeching sound. It opened by itself and the muffled sound of mechanical bodies.

"Maybe I should leave," Ritsuka sense of self-preservation hit him like a tidal wave.

He was suddenly slammed into the side of the wall. A man in red scowled angrily.

"Don't kill me please!", He yelled at the red man. Ritsuka should feel frightened especially since he recognizes the red man.

The Archer of Fuyuki.

"Kill you? You're an unauthorized trespasser," The red man smirked. He let go of the young Master," But my master wouldn't be happy if she wakes up to see blood on my hands."

The red man gives off a different aura compare to the Fuyuki Archer.

" You're not going to kill me? Wait, How are you able to materialize without Chaldea knowing?", He stood up and stared down the servant," If you're not going to kill me, At least let me see your Master."

"Fine," He spoke sarcastically," Alright, There an array of both magical and technological defenses ahead that can't be avoided unless you can sprint pass it at servant speed. Good luck!"

The red man faded away.

"Wait! What?"

"Sentry Bots, golems, Shapeshifters, Eaters and mystical mindfucks. What did you expect?", He smirked from astral form," Turn back, I can't be held responsible for your stupidity."

"If you want to play like that, I'll guess I summon all my servants against you and free the girl," He raised his command seals hand.

"We both know you wouldn't," He rolled his eyes. EMIYA materialize behind Ritsuka," You know what, If you really want to see my Master, I'll allow it."

Ritsuka found himself in a bridal carry.

"This is embarrassing," He covers his face.

"Do you want a piggyback?", EMIYA chuckled," Or maybe I'll carry you like a sack of potatoes."

"Bring me to her."

"Question for you, By any chance, you recognize the name Tohsaka Rin?"

"Who?"

"Sorry, That was a strange thing to ask."

Shirou steps out of the elevator and into the pristine halls. It would've been a problem to search for someone in a massive facility if they don't have each other on call. There also paging them if calling is an issue.

Unfortunately, Either option is unavailable because RItsuka phone signal is nonexistent and he isn't responding when being paged.

"He's probably asleep."

It was Shirou first thought when he walks into Ritsuka room.

The Magus looked around the younger Master room and started getting worried.

He hates to ruin a party. He internally smacks himself. There is another way to contact someone.

[Saber, I'm looking for Ritsuka right now], He communicated,[Can you ask any of his servants to call him to the cafeteria. He's late.]

[Okay Shirou], She responded. A few moments later,[ Um, none of them can't contact him. Is he alright?]

Shirou felt as if an invisible hand gripped his heart.

'How could it be impossible? It's a telepathic conversation that in theory, can only be affected by magical means!'

[Saber, Follow me to the security room.]

[Of course Shirou!], She chirped,[Umm, You can call me by my real name Shirou.]

[Your real name?]

[Artoria Pendragon silly.]

[Yes of course], Shirou coughed,[It just a habit with the other you.]

[In that case], She agreed,[You can keep calling me Saber or Saber Lily if you summon the other me one day.]

"Welcome Master," Saber Lily bowed. She was holding a small container filled with food which is about to run out.

The two of them were at the security room on the south section of Chaldea.

"Let's go in," He answered promptly.

The security room was spacious and organized.

Besides the many rows of monitors that were meant to be watched over by a team of security personnel. A single young teen remains at a metal desk. He wasn't even keeping an eye on the cameras, but instead, his eyes were glued to watching Monty Python and the Holy Grail.

Shirou didn't know who the boy was but knew he was part of a defunct security force. They are defunct because most of its members were killed off in the explosion. They were small, to begin with, and were meant to keep the peace.

At least that what he was told even if he doesn't remember seeing staffs member dress in the black with silver accent Chaldea security uniform.

A small team of spellcasters/mercenaries with guns mean nothing to a servant, but they are trained to handle human targets with an emphasis on restraining the offender. A servant becoming rogue require a different kind of protocol. It enlists the aid of other servants and immediately cutting off mana.

Gray told him beforehand that the mercenaries are possibly more properly vetted, unlike the Masters. It makes senses, Olga doesn't want trigger happy scums turning Chaldea into a prison, but she turns a blind eye on who the masters are as long as they are capable.

"Master Shirou," The lone security guard acknowledged," And King Arthur."

"Hi!"

"I need you to track were Master Ritsuka Fujimaru went," Shirou got to the point, "He's been gone for the last hour."

"I saw him," He answered, "Master Ritsuka headed toward the ruins of Enforcer Gray's room."

"Gray's?"

"Camera's are nonexistent in that area," The young teen paused the movie and started typing on a console next to him," He seems to be in a hurry."

The younger magus sprinted at full speed down the halls.

"Why would he run?", Shirou spoke out loud, "No one was coming after him?"

"If by some misfortune, I wasn't doing my duty or Chaldea detection system fails," He explained," Master Ritsuka could call on his servants. That isn't the face of a man being pursued. He's running because he has something to hide."

"His arms are wrapped around his chest," Shirou leaned closer, "You said Gray's room. What the hell could he possibly take to make him so worried."

"He took something from there?", the teen questioned, " For the sake of ethics, I can't just go after him. I follow the rules here first and foremost. I'll report this to either the Director or the Doctor. They can sort it out."

"Why didn't you report this beforehand?",Shirou asked.

"Ritsuka is a law-abiding citizen before he was a master. I have access to the profiles of every Masters here for a reason. I have a chart ranking who likely to cause trouble and Ritsuka is on the very bottom," The teen gives his answer," In hindsight, I didn't think about it much at the time. Although, We also have a list of people who lack sufficient info and not knowing the full detail is more dangerous than completely understanding the most dangerous master."

The next scene is a time skip.

"Motion tracking on this camera's pointed to his last known destination being the basement level", the guard hand slightly shook.

'The basement level?', Shirou recalls the magical energy emulating from the basement. It was a bounded field. He wasn't able to investigate further since he needed for the first mission.

"Shirou wait!"

The sword-Magus hurried out of the room in an instant.

He immediately dials Romani to explain the situation.

In the same instant, The security official dialed the Director in a panic. It took everything in his power not to react to the possibility of losing two Masters.

Normally, he shouldn't react since for his entire life, he is trained to be a machine. He shouldn't show fear. But, the horror he witnessed can break the strongest of will.

" Is your Master that valuable?", Ritsuka asked trying to keep himself from vomiting.

He has been bridal carried for the last few minutes and closed his eyes for most of it.

It wasn't out of embarrassment. The reasoning is even more morbid as he saw bodies torn to shed in the labyrinth-like halls. Ritsuka refused to breathe through his nose as the stench was unbearable.

Even now and then, he can hear something coming after them. Yet, he refused to find out. The Magus was too frightened to look and wanted to only push on with resolve.

"I don't know, but it was meant to keep her in and to keep intruders out. They, Whatever this facility is are keeping her locked here, "He dropped off Ritsuka, "Open your eyes and take a deep breath before you passed out. The worse has past."

Ritsuka slowly removed his hands from his face and took shallow breaths.

"Chaldea?"

"Chaldea? Never heard of such a place even in my lifetime. Maybe not killing you was a great idea," He smirked," I can tell you're not a danger to me. You're are just as clueless as I am. There console on the inside and are at the very core, but I don't know how to work it. I'm afraid I will press a button that can end up killing her. I'm asking for your help to free her. It's about time she wakes up."

"Does this mean I should trust you?"

"Should you?", he said cryptically.

Huh?",A sense of familiarity wash over the young Master," But why don't you destroy the defense system beforehand?"

"It quite easy to do," He answered," The same thing keeping her in. It is also what I suspect will protect her if I'm not around. I plan to scout the facility today until I met you. My summon is strange for lack of a better word. There was no summoning cycle nor was I implanted with a directive. Instead, I received memory of a heroic spirit driving himself to insanity."

"Memories of another heroic spirit?"

"One close to me," He grimaced.

"If you don't mind me asking. What was your name before becoming a heroic spirit?",Ritsuka asked.

"Nameless."

"Nameless? Do you even know who you once were? What about that other heroic spirit?"

"I know exactly who I once was. It was the good old days," Nameless smiled and then frowned, "That other heroic spirit would see it differently. Hop on my back."

"Before I do that," He gulped," What happened to the people here?"

"The defense system got hacked, a virus took over, evil things started to materialize, and people die like pigs," He listed out," All the more reason to get her out of here and hopefully purge her from the system."

**PLAY Fate/Grand Order - BB Channel (remix) Extended**

"Shit," The Archer cursed.

"What happening?"

"How dare you steal senpai away from me? Mumei? I thought we have a deal?", the voice was cold and heartless,"Ȋ̑͒̊ͫ̃͟ ̴ͭͫ̓͌͂ġu͐̒ͭ̏̔̚e̸̋̌̊ͧs͒͒͟s̑ ̍̈́̉͊̓ͥ͒͞İ̅͒͂͗'̈͐ͮl͒́̎̄̊̈̊l̆͌̂̔̓ͧ͆ k̋̔i̒̂͌ͣ͗͡l̶̾̂l̶͑͆̈́̋͑ͤ ͑ͯ̏ͩ͠aͮ̇͆̿̄ĺ͆̾̃ͯ̽̂l̵̔ ̅̆ͩŏͬ̽ͤ͛ͦ̚f́͂̋ͮ̀ ̛̋̑ͧ̓͌ͩỹ̅o̴̊ų̋̏̌.̊̍̄ͦ"

A/N: Before anyone things, I will add too many Masters, there is such a thing as support and side characters. Olga will be a Master but she will not join in unless absolutely needed. And when she join, that because everything has gone bad. And the type of servant she would get is interesting since in the FGO: Lost Room OVA, all her servants are evil align.

I plan to develop Olga character a bit more as more of her father secret become know to everyone.

It honestly going to be hard to balance considering the scale of characters. Ritsuka might end up taking a backseat when Hakuno and Shirou is around.

Anyway, Got to go. Read and Review so I can improve. Also, BB scares me.