This is my first fic ever,so please go easy on me. It takes place after the defeat of Gaia,just altered. So,after and Annabeth got out of Tartarus,Percy was offered something no one ever was and was given time to think it trough. During the final battle,he,Annabeth,Jason,Nico,Frank, Hazel and Reyna were the only ones standing. Percy knew he had to make a sacrifice greater than anyone could have imagined,but he did it. After he had been gone for two years and presumed dead ,everyone was devastated. The rest of the Seven had a new quest approaching,but were almost killed when they were joined by an unlikely ally. What happened to their friend remained a complete mystery.

DISCLAIMER: I do not own PJO or HOO series.

(English is not my main language,sorry if there are any grammatical or spelling

flaws)

Percy's POV

The battle wasn't going well.The giants woke Gaia up and she was coming for the young demigods and the gods.Percy was scared.His father and he just killed Porphyrion and he took a minute to catch his breath before running back in.Most of his friends were unconscious from the battle between the Greeks and Romans.Reyna,Nico and Coach Hedge were able to get the Athena Parthenons to the Half-Blood hill,but someone fired at the Greeks and their fight began.Percy didn't blame anyone for it,though it would have been better if his friends were able to help.The only ones left standing were Percy,Annabeth,Jason,Frank,Hazel,Nico and Reyna as well as some of the gods,but they were on the last atoms of their strenght (even Reyna) and Gaia's forces just kept coming.Percy had a bad feeling.

The ground shook. You have failed demigods, said a sleepy voice coming from the 15 foot figure that just rose up from the earth. Gaia,Percy thought. You will lose,I don't see the point in continuing this battle.We will be joined soon by another primordial and you will all die! she spoke.Percy felt it coming.All the horrors he and Annabeth had been trough during their fall into Tartarus in Rome.All the fear,no,terror,came back.All the repressed memories.The sulphur from the air.The river Plethegon burning his throat.The arai,curses,the pain,tears,battles,everything.Annabeth must have felt it too.She turned to me and suddenly I saw her again as a corpse from when we used the Dark Mist.Her eyes that were usually calculative,but warm,were now filled with fear.She must have remembered what Percy did to Akhylis.Gods,he wished he hadn't done that.

The ground behind Gaia split open and a figure made of pure darkness crawled out.Just what we needed right now,Percy thought,looking at the figure who had been seen only once before by none other than Annabeth and himself,the immortal who killed Bob and Damasen at the Doors of Death.Tartarus himself joined Gaia.

"Oh we're so doomed",he heard Jason mumble.He couldn't help but agree.

Everyone stared in awe at the two primordials.The fight had been long lost before,but now...Well,no words could describe this.The gods and their children,kept fighting the Giants while Jason,Nico and I had a quick shout out.

"We have to do something!" Jason yelled as he split two dracenae in half with his sword.I looked down and saw Riptide was dripping with blood.Percy had a backup plan,but he didn't want to execute it unless they were desperate.This definitely counted as desperate.

"Nico,do you think you can conjure more dead?" Percy shouted.Nico nodded:"If Hades helps,perhaps an entire army"

"Good,you and Jason keep Gaia occupied.Tartarus is mine!" I ordered.They tried to protest,saying I'll get myself killed and all that,but we had to do it this way.Besides,I wanted to avenge Bob and Damasen.I suddenly wondered what happened to Small Bob?I shook that thought aside and charged towards Tartarus as Nico and Jason did the same toward Gaia.I saw lightning rumbling and dead coming up.Gaia was caught by suprise, which was good,but for how long will it last?Percy had to move quickly.

He sliced Tartarus' chest and the primordial bellowed in pain.I took the opportunity and summoned a tsunami,a hurricane which lifted me up and a quite an earthquake.I had never been able to do all that togeather,but I figured dad helped me.I turned my hurricane towards Tartarus who had just been drenched in salt water.I kicked him in the head and he stumbled down falling back into his own realm.So his weakness is above-Tartarus water,huh? No time to think,Jason and Nico were already from waste down swallowed by the earth.He couldn't let his friends die.He turned off his hurricane and summoned all the power he had in him,reaching for the rivers of the Underworld.He felt his legs weakening,his strength flying away in an inhuman way.But he did what he imagined.A giant wave rose up from the Pit and drenched Gaia.I trapped her in there making sure I hurt no one else,except maybe some monsters.

I collapsed on my knees not letting Gaia free,I could feel her weakening.Nico and Jason freed themselves and rushed to my aid.

"STAY BACK!" I managed to say.I didn't have much time if I kept this up.I knew what I had to do.I looked at Annabeth,his Wise Girl,one more time,trying to remember her face perfectly.I took in the view of all my friends and remembered every single thing we've done.I was doing this for them.I was making a decision that is going to save the gods,mortals,my friends,Annabeth,Jason,Frank,Hazel,Leo, Piper,Nico,Reyna,Coach Hedge and his wife and son,Clarisse,the Stols,Thalia and the rest of the Hunters and Amazons,Will Solace,Chiron,Reachel,Tyson,my mom,Paul and my unborn sister.I remembered everyone we've lost,Bianca,Luke,Zoe,Beckendorf,Silena,cMichael,Bob,Damasen,Lee and so many more.I couldn't save them,but I can save these people now.With that,I knew what I was doing was to save my family.And it was worth it.I was fine with offering myself to the one person no one should trust in order for them to live out their lives.

Oh Mother of the Universe,hear my prayer...

So,did you like it?'ll try and update as often as possible,and I have sort of a big story all planned out.I hope you enjoyed!