"Hello?" Sam said, answering his phone. He, Dean, and Cas were interviewing family members of the victims from their current case. He had briefly stepped out of the room to answer the call.

"Hello Sam. It's Sherlock. I have a question that I think you might have the answer to."

"Yeah, shoot." Sam started pacing as he listened to Sherlock describe the crime scene.

"You think the murderer ate him?" Sam asked for clarification.

"That's my theory, yes." Sherlock answered. "But there were no bones. A human wouldn't have been able to eat another person that quickly and without leaving a messier scene."

"So you think it's-" Sam looked back into the room where Dean and Cas were interviewing and lowered his voice. "The type of thing Dean and I would deal with?"

"Exactly." The word was punctuated with impatience.

"Well, I'd need to look at my notes, but at the moment I can't recall anything that would leave nothing. Werewolves have been known to eat their victims, but I've never heard of one that left nothing behind. Usually the victim looks like a dog attacked it. Vampires are only interested in a victim's blood, so there would be a body. Umm..." Sam stopped his pacing as he thought about recent cases. "Could be a Wendigo. Dean and I faced one of those a year ago. They have to eat flesh to survive, but they have a tendency to store their food. But they would only eat that quickly if the person really pissed them off. Lucy might have some more ideas, since she's seen our future cases, plus she has Dad's journal. He cataloged more monsters than Dean and I have. There might be something in there that she can find."

"I'll call her then. Thank you for the help."

"No problem. You have her number?"

"Yes."

"I have to go. We're in the middle of an interview right now. Call me if you need anything else."

"Of course." Sherlock hung up, and dialed in Lucy's number. While the phone was ringing, he turned to see John's face.

"What did Sam say?" He asked.

"He said it most likely wasn't a werewolf or a vampire. He mentioned Wendigos. Could you search for that?"

"Sure." John pulled his laptop closer and started to type 'wendigo' into the Google search bar while sounding out the word to guess its spelling. Sherlock smiled, very slightly, as he watched John's peculiar (and slow) way of typing with only his index fingertips.

Having twenty tabs open on a web browser was never a good idea. The laptop runs slower, and it takes a long time to switch between tabs. However, Lucy had no intentions of closing a single tab. The reason? Sherlock season three. She had readily agreed to stay behind today while the three boys went to interviews. The show was premiering in Britain at the moment, and God save her if she missed it.

There was an intense amount of thrill to watching a show as it was streaming live. It felt like being part of a worldwide community. Lucy liked that when she gasped at what happened on the screen there was another million people gasping at the same time. It was true that her live-stream was crummy, but she could cope with it. Every once in a while her live stream would go down, but then she'd switch tabs. And it was all okay.

She had been excited about this particular episode as well: The Sign of Three. John was getting married, and she couldn't wait to evaluate Sherlock's character. It was weird knowing that there was a Sherlock wandering around London as she watched this, but she attempted to keep that thought out of her mind. She wasn't going to give up her show just because he existed.

Across the room, Lucy's phone started ringing. She glanced at it quickly before electing to ignore it. There was only half an hour left of the episode. Lucy figured she could call back later. The phone rang out before going silent. Then it started ringing again. Despite the ring tone being exactly the same, the phone call seemed more instant.

Lucy glanced at the screen and heaved a sigh. "Dammit BBC. I need a commercial break."

She walked backward, keeping eye contact with the screen as the show played on. Grabbing the phone after a moment of feeling around for it with an eye on the screen, Lucy answered it, "Yello"

"Hello Lucy. It's Sherlock. I have question." Oh shit. Lucy glanced at the screen, deciding what to do.

"Heyyy Sherlock." Lucy stalled. "What's up?"

"I have a question for you about a case. Sam said that you'd probably be able to find an answer for me."

"Depends on what the question is." Lucy answered absentmindedly. She was back to watching the episode from a distance. Would she be able to walk toward it without Sherlock hearing it was on? She decided to risk it. Then she could turn down the volume and continue watching, or she could just plug in ear buds. She looked around the room and spotted them sitting on one of the two bedside tables.

"John and I were at a crime scene-"

"Uh-huh." Lucy affirmed making her way toward the ear buds. John had just called Sherlock a drama queen on the screen, and Lucy resisted the urge to laugh out loud at Sherlock's reaction.

"And we found traces of a person who had been eaten."

"Right." Lucy covered the receiver with her hand, so Sherlock couldn't hear much as she scrambled to grab the ear buds and plug them into the laptop. However, the volume was so loud that noise still managed to escape the headphones.

"Are you even listening?" Sherlock asked, scowling. And given the fact that she was not actually listening Lucy muttered, "uh-huh" into the phone again, as she lowered the volume and fitted the ear bud into her ear.

"Lucy!" Sherlock shouted, causing Lucy to startle at the sound. "There is a man dead, and you're watching television. Tell me, what's more interesting than a case."

"Uh… well." Lucy stammered. She glanced back at the show, just as John spotted Sherlock and Janie on the screen. Before she could filter herself, she blurted "Fuck, he's jealous."

"What?" Sherlock was getting more and more confused.

"Oh my God. I'm so sorry Sherlock. I got distracted. There's a show that I was watching on television. It, uh… called Agents of Shield. It's a real dramatic show about super heroes and such. I'm watching last night's episode. It's no big deal." Lucy paused a moment to collect herself. "You called about a case. You said a person had been eaten. What are we talking about here? Hannibal Lector or Supernatural?"

"Supernatural." Sherlock confirmed. His mind was partly thinking about what show Lucy was watching. He had the sneaking supposition that she was lying.

"Okay." Lucy looked back at the show. Sherlock was playing a violin piece for John and Mary. It was beautiful, making her heart ache on Sherlock's behalf. "What other details do you have for me?"

"The crime took place in a convince store. There were obvious signs that the store's cashier had been tied to a chair, but no signs that he ever left the chair. The blood surrounding the scene and imprints in the cheese indicated that the victim had been struggling indicated that there was a chance he was eaten. There was no body, so it seems unlikely that a human could have done such a thing." Sherlock rattled the facts off into Lucy's ear as she continued to watch the show with split attention.

"Wait, back up. Did you say cheese?" Lucy interjected.

"Yes."

"Like nacho cheese?" Lucy asked. She had an idea of who (or rather what) committed the murder, but she didn't want to jump to conclusions. Meanwhile, in the show Sherlock was giving a short speech to John and Mary. He was making his vows. Damn, Lucy wished that Sherlock wasn't on the phone with her. She needed to evaluate this closer.

"Precisely."

On the screen, Sherlock was going over the John and Mary. He told them that Mary was pregnant.

"Oh fuck!" Lucy reacted, again, unable to filter her thoughts.

"What is it?" Sherlock asked, obviously agitated.

"Leviathans." Lucy recovered, making it sound that her language was directed at the thought of the Leviathans. "They're bad news. I saw one perform a scene exactly like that in an episode… with the cheese and everything. If they entered this universe, then we're really in trouble."

"And you're sure that this is the monster?" Sherlock tested her.

"Like 99% sure Sherlock." Lucy responded. She was no longer paying attention to the show. "Fuck. Okay, let me pull up a list of what you can use to fight them, and what they look at. You and John could probably search for it on Google as well.

"Okay I pulled the page up. So Leviathans are incredibly old, Sherlock. The myths in Supernatural say that they were the first of God's creations, but they went bad. They were too strong and too destructive, so God threw them into Purgatory. They show up in, like, season seven. Sam and Dean are from season two. They're nowhere near experienced enough to handle these guys." Lucy drifted off in thought. "Though, Cas might be. I can never tell what season he's from, you know? I always could just ask him. You think it would be easy, but it's hard to tell. The big changes with his onscreen character changed with his and Dean's relationship, but I can't go by that now since Dean is so much younger. The relationship isn't the same between them now as it was on screen, which is probably good. The higher ups that produce the show screw with their relationship a ton. Maybe in this universe it will work out for the two sons of bitches.

"Anyway, don't pay attention to me. That information isn't particularly important or helpful for you. So… the website says that 'the only way for a hunter to kill a Leviathan is with a Bone of Righteous Mortal Washed in the Three Bloods of Fallen.' I'm going to assume that you don't have that, so here's what also works. You can use Borax. It doesn't kill them, but it burns them very badly. It's like when you squirt holy water on a demon. These monsters have a quick recovery time, though, so you'll need to be careful of that. Even with decapitation. It slows them down, but if you give them enough time, then they'll find a way to reattach their heads, which might sound a bit strange." Lucy laughed lightly. "But they aren't actually human, despite looking like it. Their insides are kind of weird, and it looks sort of like black glue. And they have these circular mouths with rings of sharp teeth."

"How do we find them?" Sherlock asked. Lucy could hear him pacing as he talked.

"The way you would find anybody really. I would start looking at businessmen though. In the series, the leviathans were sort of led by this guy named Dick Roman. So I'd start there. He should be an upper level business man with a ton of recent and nonsensical property purchases." Lucy replied. She heard someone taking notes in the background and assumed it was John. Sherlock seemed to memorize everything instantly.

"Anything else, Lucy?" John asked. Sherlock seemed to just be listening at the moment.

"Roman was based in America, since that's where Supernatural is set."

"Then what are leviathans doing in London?" John questioned.

"No idea." Lucy said honestly. "It's kind of worrisome if he's expanding beyond the U.S., especially if we have any other villains on the loose."

"Other villains?" Sherlock jumped in. "What other villains?"

"Well the Doctor popped in the other day with Donna, who's from Doctor Who as well. She, apparently, turned up in Cardiff while the rest of us were in Newbury…" Lucy trailed off, letting Sherlock finish her thought.

"Other people might have gotten through the rip as well." Sherlock supplied.

"Yeah. That's my fear." Lucy responded. On the other side of the line someone flopped down onto a couch. It was probably Sherlock.

"Thank you for that Lucy." John started to say slowly. "We'll be on the lookout for more villains. If you could email me the names of some of the people or… monsters or aliens to look out for that'd be great."

"I'll get right on it Dr. Watson." Lucy said. Her mind was switching to business mode. The happy-daze of the new Sherlock episode seemed a long way away now. "I'll talk to you soon. Stay safe."

"You too, Lucy." John responded.

Lucy hung up the phone and stared back at the screen, which was now rolling the credits for the episode. Leviathans. Why did it have to be leviathans? She flipped her phone in her hand a few times, before calling Sam. The call went to voice mail.

"Hey Sam. Call me back as soon as you can. We have… a potential situation here."