Real quick, thank you to those who answered and gave their ideas, you are lovely, thank you.

I think I will incorporate several of them and I may actually change the story a bit to fit one or two I really liked.

It's still not too late to ask for something in the story, review or send me a PM, Id be so grateful.

The Doctor Lead Amy and cas toward the second staircase, walking bouncily.

"Sorry about Dean, he's. . .very. . . well, I'm actually not entirely sure."

"Oh, no worries! I've met many a creature like him before and worse." The Doctor replied.

"So you're an angel?" Amy questioned.

"Yes." Cas said blandly.

"What'd you do? Fly around protecting people?"

"Sometimes."

"Well? What else?"

"Whatever God commands." Castiel said as they climbed the staircase.

"So you're like a soldier. How come you haven't got any wings?"

"I do have wings, but they are part of my true from, and my true form is held inside of this vessel, so you can't see them. If you could, you would never see again." Castiel said.

"Vessel?" Amy asked.

"This body, it isn't mine. I'm merely occupying it." Cas explained, finally looking at her to talk.

". . .You took someones body?" Amy asked, frowning at him.

"I was given permission. I can't take a vessel without their consent." Cas said. Amy still looked bothered by this.

"Alright then. D'you have other angel friends?" Amy asked, determined to make Cas open up to her.

"A few." Cas said quietly.

"Tell me about them" Amy demanded.

"There's, not much to tell." cas lied. "Very serious about our business."

"Well what'd you do for fun?"

"I help Sam and Dean."

"That's as fun as it gets for you?" Amy asked. Cas looked confused.

"Yes. They're my friends."

"Thats really sweet." Amy said with her lovely smile.

Cas blinked.

The Doctor slowly opened the door to the next floor, and it swung open smoothly. They looked around.

"Hmm." The Doctor said. Cas then turned his head quickly down the stairs.

"Somethings coming." He said. Footsteps could be heard in the distance.

"Wait, they're getting fainter." Amy noted.

"I think they're following Sam and Dean." Cas said. "I'll go warn them."

"Wait, shhh!" The Doctor said covering Cas mouth and Amy quickly covered her own. They could hear footsteps above their heads, it sounded like someone running.

"Okay, lets go, silently mind you." The Doctor said releasing Cas

"But I should warn them!" Cas repeated.

"It was probably just the boys themselves." Amy said pulling Cas along.

The Doctor moved quickly but quietly down the hall. The floor was dirty, the walls had smudges on them, and the windows were yellow around the base.

"Isn't this place lovely." Amy retorted. "What'd it used to be?"

"A medical building of some sort, I think." The Doctor responded.

"There's that running again." Cas said stopping and looking up at the ceiling. Amy looked nervous.

"I've never actually seen a Silence run, have you Doctor?" she asked.

"Not like that. . .no." The Doctor said peering up also.

"So there are other people here too?"

"That's a possibility."

two sets of footsteps were heard coming along the hallway behind them.

"Quickly, into the closet!" hissed the Doctor, ushering them into a grubby old supply cabinet that reeked of mildew and old chemicals. They crouched there as the footsteps came closer and closer, and then past them, and then farther and farther. It was quiet for a moment.

"Cas, go make sure John, Sherlock, Sam and Dean are okay. Bring them back to this closet. Maybe splitting up wasn't a good idea." The Doctor said to him after a moment. Cas was gone in an instant and Amy gasped.

"Thats amazing." She breathed.

"Wait here, Amy. Promise me, don't run off."

"Alright. As long as you come back." She agreed . The Doctor slipped out and she could barely hear him walk down the corridor.

Dean and John moved slowly along the panels, and kept going, even when they heard the demons following the other two.

"Alright," Dean said, moving a panel. "Hop down." John braced himself for the drop and Jumped. He managed to stay on his feet but swore. Dean lept down after him and examined the broken table.

"Yeah, demons strength." He noted.

"I still can believe any of this. I thought I was in over my head with the detective stuff, but this. . .I can't do this." John said. "How do you manage?" He then asked. Dean considered him for a moment.

"Tequila." He answered after a minute. "C'Mon. We'll try and find the Doctor and friends."

John sighed and followed him.

"So, your John Watson, huh?" Dean asked him

"Yes."

"Hm. My dad's name was John."

"Was?"

"Yeah, He died a while back."

"Ah, right. I'm sorry."

"Nah, don't be. He was a bit of an ass anyway."

"Dean." Said a gruff voice behind him. Dean whipped around.

"Cas!" He said relieved and patted him on the shoulder. "You okay?"

"I think so. Where's Sam and Sherlock?"

"They're distracting the Demons."

"Demons?" cas asked, his eyes widening.

"Yeah Demons. Wait, wouldn't they have angel proofed it?"

"That's kind of a dead giveaway that there are demons I suppose." Cas said. Dean shrugged. Cas sighed.

"I'll take you first and come back to look for them." Cas said, putting a hand on Dean and one on John.

John gasped and nearly fell over, knocking empty cleaning bottles aside. Amy squealed then clapped her hands over her mouth.

"Where's your Doctor friend?" Cas asked.

"Shh! Don't you know how to whisper? He's making sure the coast is clear.

"Okay, I have to find Sam and Sherlock." Cas said. and with that, he was gone. Dean sat down.

"This is officially the stupidest hunt I've ever been on."

"Call it what you want." amy snorted.

"So, you're his sister or something?" Dean questioned her.

"What? No, no I'm just a friend."

"How'd you even meet a guy like that?"

"He met me. I was the first face he saw, in a sense."

". . .What?"

"Never mind."

The Doctor swung the door open.

"There you are." He said to Dean and John.

"What's up Doc?" Dean said getting up and leaving the awful closet. "Is the coast clear?"

"Yes. But I'm afraid, there are plenty above us. and as much as I hate to say this, I'm reconsidering your gun." The Doctor said looking slightly embarrassed. Dean smirked and handed him his gun.

"Say no more."

"thank you." The doctor said taking it. He examining it in his hands for a moment before pointing it at Dean and promptly shooting him in the side. Dean cried out and fell against the wall, teeth grit. Amy screamed and John looked terribly alarmed.

The Doctor smiled a wide smile, his eyes pitch black.

Id also like to apologize for the errors in the story, I didn't bother to use a beta for this story, But I'll do my best to spot them.

thank you all!