"That's because there is something wrong," a deep voice said behind the Doctor. He turned around to see Cas standing in the middle of the room. Amy stared at him for a moment before turning to the the Doctor.
"Doctor, who is he?" Amy whispered, thinking that she was going crazy. She didn't even hear the guy come in or see him walk in front of her. He just appeared.
"Amy, this is Castiel. An angel," the Doctor introduced as Cas stepped toward the Doctor. "I knew you would come sooner or later."
"I would expect so," Cas replied, standing in front of the timelord. "I know that you told Dean and Sam about who you are. I'm surprised that they haven't killed you yet."
"I'm not," the Doctor replied with a dangerous smile. "I don't think you came over here just to tell me that you're surprised that I'm alive."
"You're right. I'm here to warn you. The apocalypse is coming, and Dean and Sam are a big part of it. I suspect that you already knew that. You need to make sure that they're safe. I don't want an angel picking up them because of you," Cas warned, squinting his eyes. The Doctor just nodded and sighed.
"I'll make sure that they don't get in trouble, then," the Doctor replied.
"Good. I'll be watching over you and I'll come down when I can," Cas informed before disappearing. Amy gasped, shocked. She had seen a lot of things, but Cas's disappearing act was impossible by the laws of physics. The Doctor bit his lip and looked down. He hated the short conversations that angels insisted on having.
"An angel?" she whispered, surprised.
"Yes, an angel, and he'll be back soon. He showed up earlier to tell me that I needed to them to get as far away from me as possible, but the boys wouldn't listen. Although, it is interesting to see an angel so attached to a human. They usually could care less about them," the Doctor answered.
"I thought angels were supposed to be kind and loving," Amy muttered as the Doctor shook his head.
"According to most mythology, angels are warriors of God. They can be merciless, but they are always righteous. Well, most of them. I'm guessing Castiel is one of the most righteous, especially if he's the one that pulled Dean out from Hell," the Doctor estimated, putting a hand to his chin to think.
"Why would he pull him out of Hell if they don't care about humans?"
"He mentioned something about him being Michael's vessel, but I'm not exactly sure what that means. There's a story that Lucifer and Michael will fight and bring on the apocalypse. Sam said that he was Lucifer's vessel, as well. I think Castiel got more than he bargained for when he dragged Dean up. Now, if I'm right, they have a bond to each other," the Doctor said before hitting his forehead. "Stupid! He's not protecting Dean for Heaven. Castiel's protecting him from Heaven! If he has something to do with the archangel and the apocalypse, it probably means danger, and Castiel is protecting him from it."
"I have no idea about what you're talking about," Amy informed as the Doctor ignored her.
"I'll be honest, when Castiel first showed up, I thought that I was on Heaven's hit list, but it seems that's not the case. Castiel doesn't want me near Dean because of the bond they have. Not because Heaven doesn't like me," the Doctor continued as Amy just nodded, leaning on her knees. "I wonder why Castiel thinks I'm dangerous, though. That's an interesting thought."
"I'm sure it is. Couldn't he have heard of you before? You're not exactly inconspicuous, Doctor," Amy reminded as the Doctor shrugged.
"Maybe," he whispered, thinking deeply. Amy sighed loudly before standing up. "Where are you going?"
"Out. I can only stay in for so long," she replied shortly, thinking that the Doctor wasn't going to give her any more information about what was going on. "Tell Rory, okay? Wouldn't want him to panic."
"Will do," he whispered, lost in thought. Amy rolled her eyes before leaving the flat. The Doctor sighed, shaking his head. He was missing a few pieces to the puzzle, like what the Winchesters meant as being vessels. The Doctor had an idea, but even for him, it seemed a little far fetched. Eventually, he decided to call Dean, since it would be easy just to ask what was going on.
"Hello?" Dean answered as the Doctor sighed.
"Dean. I have a few questions," he replied, surprising Dean.
"Shoot."
"What do you mean that your Michael's vessel? And is Sam Lucifer's?" the Doctor questioned before a long silence. "Dean?"
"I'm Michael's meat suit, and Sam is Lucifer's. We are supposed to just say 'yes' and conduct the apocalypse. Why?" Dean replied, growing worried.
"Castiel came a few minutes ago to make sure that I wasn't going to get you killed. I wasn't sure why you were so important, so I thought I would ask," the Doctor muttered, concerned.
"Look, Doc, we hand danger all the time. Facing death isn't as uncommon as you think for us. We'll be fine," Dean urged with a laugh.
"I just don't want to get smited by your angel because I helped you, Dean. That's it. Castiel mentioned that I would get you caught by other angels," the Doctor continued.
"Why would you get us caught?"
"I don't know. That's why I'm asking you."
"Look, just don't talk to strange religious people or go praying to angels and we'll be fine. Castiel is overreacting. Wherever we go, there's always a chance that someone will recognize us. We just have to keep going," Dean informed sternly as the Doctor agreed.
"Is there anything else that you need to tell me before I hang up?" he asked before Dean shrugged.
"I don't think so," Dean replied.
"Okay. Be here tomorrow," the Doctor instructed.
"We will. We need to speak with Sherlock," Dean answered before hanging up the phone. The Doctor sighed and put the phone back in his pocket. He hoped that he was making the right choices, having the boys help out.
"Doctor?" John whispered as he walked into the room. The Doctor looked up and smiled.
"What do you need?" the Doctor asked.
"Was that Dean you were talking to? What did you say about the apocalypse?" John inquired, worried. The Doctor paused, not exactly sure what to say. "Doctor?"
"It's nothing important. There's a rumor going around that the apocalypse is coming," the Doctor smiled, lying. "They say that the Winchesters are the cause of it."
"Are they?" John asked, growing angry.
"Of course not. Do you know how much it takes to create the apocalypse? Two boys couldn't have done it alone," the Doctor answered, relaxing John. "Besides, do you think I would bring that kind of danger here?"
"I honestly don't know, Doctor. I don't know you that well. Is Sherlock still out?" John asked, moving on.
"I think so. Shouldn't he be back by now?"
"Sherlock, yes. Who he is now, I have no idea. He's unpredictable right now," John replied, shaking his head. "Do you know what you're doing?"
"Mostly," the Doctor whispered as Sherlock climbed the stairs. "Sherlock? Where have you been?"
"You know. Out and about," the consulting detective answered with a shrug before he sat down on the couch. "Anything new around here?"
"Nothing much," the Doctor replied, sitting across from him. John glanced between the two men before going into the kitchen.
"I'll make some tea," he whispered as Sherlock smiled.
"Tea would be lovely," Sherlock replied before looking at the Doctor. "So, when are you leaving?"
"Oh, in a few days. The TARDIS is still charging. I don't want her to burn up on the trip back. I hate being stranded," the Doctor answered, trying to determine what was going on.
"Really? I thought you were leaving after we took out the Gelth," Sherlock reminded as the Doctor shrugged casually.
"It's too early. If we've overstayed our welcome, we can get out of your hair," the Doctor suggested with a shrug. Sherlock shook his head.
"No, no, it's fine. If it's for a few days, you can stay. I'm sure John enjoys the company," Sherlock replied with a half smile. The Doctor nodded as he stood up. "Where are you going?"
"Rory hasn't come down in a while. I thought that I would go check on him," the Doctor whispered, having a different goal. He needed some time to think and away from Sherlock. The detective stood up in front of him.
"But John is making tea. I'm sure Rory's fine," Sherlock smiled, frightening the Doctor.
"I'll be back down in time for tea," the Doctor reassured as Sherlock's grip tightened. "Sherlock, let me go."
"You have to stay down here," he hissed, his eyes narrowing. The Doctor swallowed and sat back down, not prepared to fend off Sherlock. Sherlock grinned and nodded. "That's better."
"You're not Sherlock, are you?" the Doctor guessed with a defensive smirk. Sherlock laughed.
"You caught me, Doctor. No, I'm not your precious Sherlock, but he's in here. Don't you worry," Sherlock chuckled as the Doctor's eyes narrowed.
"What are you?"
"That's rather harsh, Doctor. I'll give you hint. You've met my kind before, but only twice in your life. Do you know what I am now?" Sherlock asked, smiling. The Doctor shook his head.
"That's not a hint! Do you know how many things that I've met only twice? I don't even know if I know the count!" the Doctor replied, astounded and frustrated. Sherlock shrugged.
"Well, I guess you're going to have to figure it out, then. I can't tell you, since that won't be fun. Once you figure it out, you get a prize," Sherlock laughed, making fun of the Doctor, who wasn't amused in the least.
"What kind of prize?"
"A fun prize, but here's the rules. You can't tell anyone that we had this little conversation. I'm sure everyone else has figured out that I'm not who I'm supposed to be. Also, you have to figure this out on your own. If you ask for help to figure out who I am, the deal's off," Sherlock replied, leaning on his fist.
"Tell me what the prize is," the Doctor demanded, feeling trapped. Sherlock smiled and shook his head.
"But that's what makes it interesting, Doctor. If you don't know what you'll lose, then you find yourself more desperate to win," Sherlock smiled with a chuckle. The Doctor glared as John entered the room again.
"Um, the tea is ready," John whispered, hearing everything. Sherlock turned to John and nodded before walking into the kitchen. John gave a way look to the Doctor before walking back into the kitchen.