Hey guys! New story, a tri-crossover of Merlin, Doctor Who, and Sherlock. Should be tragic. If you're a fan of any of them you will cry. If you're a fan of Doctor Who along with the others, you will cry harder. Sorry. Had to write some feels. This first chapter doesn't have any feels, but they are coming. I promise they will come. I don't own any of the fandoms this is written about. Hope you like it! Follow and REVIEW REVIEW REVIEW! 3

Merlin:

It had been a normal day. A perfectly normal day until some damned blue box fell out of the sky. Gwaine rushed up to Merlin, a confused look on his face while he explained that he and Percival had seen a blue streak falling from the sky and landing in the Valley of the Fallen Kings. He said it looked like a blue box. Merlin simply shrugged and suggested he go get Arthur. What was he to do about it?

"No, Merlin, you don't understand. You two have to go investigate."

"Why just us?"

"Look," Gwaine said, lowering his voice, "Percival and I saw it, but nobody else will believe us. If you and Arthur go out and pretend you're hunting or something, no one will look stupid if it's just nothing."

"Since when do you care how stupid you look?" Merlin asked, smirking. Gwaine gave him an affectionate smack over the head and said,

"Thanks, buddy." Merlin sighed.

"He's not going to like it."

"Never asked that he should!" Gwaine laughed, walking away, "Princess never likes to go out of his way for anything." Merlin chuckled and shook his head. There was no way Arthur would let them go investigate. Little did he realize…

"Oh I saw it too!" Arthur told him when Merlin explained the situation, "I thought I was imagining things, but maybe there's something out there. Come on, Merlin, let's go." Arthur looked excited, like a child eager to explore. Merlin winced.

"But sire, what if it's dangerous?"

"That's why you're coming with me."

"What? I'm a weak defense at best," Merlin teased.

"Right. So I'll be sending you into any caves first to see if you get eaten," Arthur said casually, pulling his chainmail on.

"Right," Merlin muttered, "Sounds like fun, as usual." Arthur grinned mischievously at him and shooed him out the door to get the horses ready.

Sherlock:

"John, don't touch - " Sherlock warned as John put a hesitant finger out to touch the blue wood. Sherlock smacked his hand away and held an arm out in front of him.

"That could have been dangerous! What if it triggered something?" Sherlock worried over him with un-Sherlock-like concern.

"Sherlock," John gave him a look with as much sarcasm as he could manage, "It's a box. A blue police box. Relax."

"Relax? How? It just appeared here in our flat all of a sudden! Plus these haven't been used for their purpose since the…" While John left Sherlock to his muttering, he rounded the box, tracing it the whole way. On the side facing them the first time, he found a handle. A door handle.

"Uh, Sherlock?" Sherlock waved him down, so John stared at the handle for a minute. Then he pulled it.

The door opened easily, revealing a bluish brown interior with a console in the middle. This box was entirely too large on the inside. John shut the door, blinked, and opened it again. It was still there. He rubbed his eyes and muttered,

"Oh shit...Sherlock?" Sherlock ignored him once more, so John left the door open and went to tap Sherlock on the shoulder. Sherlock waved him away and John said quietly,

"Sherlock. It's science. Lots of science. It's bigger on the inside."

"Don't be ridiculous, John, that's impossible. The space of -"

"Sherlock. Go. Look." John didn't wait for a response and grabbed Sherlock by the scruff, hauling him towards the door. Sherlock blinked in awe and John crossed his arms.

"Explain," he said simply. Sherlock didn't respond, just opened and shut the door about five more times before muttering,

"Impossible!" Then they heard a loud, "OI!" come from inside the box. Sherlock and John froze, poking their heads into the TARDIS.

"Uh, hello?" John asked softly.

"Are you coming in or not?" asked the same irritated voice. A tall, lanky figure donning a brown pinstriped suit appeared, his nose like a beak and his hair like a cockatoo. A girl appeared behind him, couldn't have been more than twenty five, John observed, with blond shoulder length hair and wide eyes.

"Uhm…" John started. Sherlock pushed past him, strolling into the impossible machine and shouting,

"No! This isn't possible! It's impossible! Completely and utterly…" The man gave John a look and asked,

"Is he always like this?" John snorted and nodded,

"Pretty much, yeah." He nodded and the girl looked between them and then back at John.

"I'm sorry, I'm missing something. Who are you guys?"

"Rose, didn't I tell you we were picking up some special guests?" the man looked confused.

"Uh, no, you seemed to have left out that one tiny detail," Rose said snarkily, but she was smiling. Then she turned to John again. "Hello, my name's Rose. Rose Tyler. And you?" John shook her hand and replied cheerily,

"John Watson. Where...are we?" Rose looked slightly interested in his name, but shook her head as if to shake off something she remembered. Sherlock was still walking around, touching things and buttons and John called him over before Rose could respond.

"Sherlock, come over and introduce yourself! You're being terribly rude!" Rose's mouth dropped open slightly and she turned to her companion.

"You don't mean they are...they can't be...it's a fictional story, innit? Doctor?" The man turned to her and grinned.

"Nope! Rose Tyler, meet Mr. Sherlock Holmes!" Sherlock didn't seem to hear them and was still muttering to himself.

"Sorry, where are we?" John asked again, "And how do you know Sherlock?"

"You mean you don't - " Rose started, but the man put a gentle hand over her mouth which she smacked away.

"You are in my TARDIS. It's a time machine, John. I won't even bother going in to telling you the mechanics of it, but Sherlock seems interested enough…"

"Oh, he'd absolutely die if you told him what this was and then he'd die again if you proved it," John smirked, "Bigger on the inside, eh?" The man nodded excitedly and then stuck out his hand,

"I'm the Doctor, by the way." John shook it and asked, cocking his head to the side,

"Doctor...who?"

Merlin:

Merlin ran a curious hand over the giant blue box. It read "Police Box" on the top. What was a police box? Arthur looked absolutely astounded at it's appearance and was still staring at it dumbly.

"Merlin, what is it?" he asked for the third time.

"I don't know!" Merlin snapped back, "I've told you, I have no idea what it is! It could be dangerous! Don't touch it!" Arthur frowned at him and rolled his eyes.

"Oh come on, Merlin, you're touching it and you're fine." But just to be safe, he pulled out his sword and poked it experimentally. He just so happened to poke the door, which swung open at Excalibur's touch.

"Merlin, go in and see what it is," Arthur said immediately.

"What? Why me?"

"Just go! I'm right behind you." Merlin huffed indignantly and peeked his head nervously through the door.

"Hello?" he asked in a tiny voice before taking in the huge sight before him. There were blinking lights, a bluish tint to the giant brown interior. "Arthur," he whispered, "You'll never believe this." Arthur walked up slowly behind him and pushed Merlin inside. Merlin turned, his eyes full of wonder, and saw Arthur standing there, looking like a deer in the headlights. He looked absolutely terrified.

"What magic is this?" he asked, his voice an octave higher than usual. Merlin shook his head, looking around the console.

"I don't think it's magic at all...or if it is it's really powerful."

"Yeah, no kidding," Arthur said nervously, "Let's get out of here."

"No!" Merlin protested, "Hang on. We've got to investigate. Who owns this thing anyway?"

"That would be me," said the Doctor, poking his head out from the door to another room in the TARDIS, "Sorry I wasn't here to greet you when you first came in." Arthur immediately unsheathed his sword, pointing it at the man, but his hand was shaking so badly that the sword was going up and down.

"Explain this, sorcerer. You are in Camelot. Magic is not welcome here."

"Sorcerer? Magic? Nah, this is science. You two would be Arthur and Merlin, yes?"

"King Arthur," Arthur corrected him. Merlin shot him a sarcastic look.

"Yes, I'm sorry, I've forgotten my manners." He took a deep bow, not mocking, and then called to his companion. "Rose! Come on, they're here!"

"Who? I thought it was just John and Sher - " She stopped when she saw Arthur and Merlin. Then she put her hands up. "You know what, I shouldn't even be surprised anymore. Who are they?" Merlin snorted when he saw the expression on Arthur's face. He thought Rose was pretty, although Merlin did not disagree. Arthur slowly sheathed his sword and approached her slowly. His expression was still wary, but he had let his guard down. He knelt in front of her and kissed her hand, causing Rose to giggle.

"Lady Rose, 'tis a pleasure to meet you," he said.

"Arthur!" and "Oi, knock it off!" came from the other two men in the room. Arthur stood, giving them both resentful looks and Merlin crossed his arms over his chest.

"You've already got a queen, Arthur, quit it. I, on the other hand," Merlin kissed Rose's hand as well, but didn't kneel, "Am unattached." The Doctor scowled and put his hands on his hips, pulling Rose back by the hand.

"You two are both terrible flirts, you know that? Knock it off." Then he looked at Rose thoughtfully and asked, "Isn't it about time you showed Sherlock and John to their rooms?"

"You haven't even told me who they are!"

"King Arthur Pendragon of Camelot and his sor - servant, Merlin." Rose widened her eyes again and looked at both of them.

"You're joking? That's Merlin? The Merlin?" Arthur looked at Merlin with a confused look and the Doctor shot Rose a desperate look and asked,

"Please go. I promise I'll talk to you later." Rose scowled playfully at him and pulled her hand out of his.

"All right then. See you guys later!" she waved and ran off to help Sherlock and John get their bearings.

"And now," the Doctor announced, "We go to modern day Earth!"