"I hope you know what you are doing," Bobby said, frowning.

Yuto unpacked his things. Everything eas ready to be used.

Bobby looked at the equipment and he was intrigued to know where Yuto found that weapons. He could see strange knives which resembles holy cross, many bullets and many type of guns. There was even a heat detector.

"Where did you find them?" Bobby asked.

"The belonged to my grandfather," Yuto answered. "Okay, there is something you should know. It will be easy to identify Excalibur. A holy sword like that drew attention. I'm most concerned about the Lady of the Lake. She is a vindictive woman, according to what Merlin said."

"Wait. Did you say "Merlin"?" Bobby asked, blinking quickly.

"Ho contacted me through a dream. He said I can't take Excalibur without Fairies' help," Yuto answered.

"Wait, you know Merlin and you didn't tell it to me," Bobby said angrily. "Well… did he say who to obtain it?"

Yuto smiled lazily. In reality, he had just assumed that Excalibur existed in that world since magic and the supernatural existed. In case there was no legendary holy sword, there was always his, the one he had inherited from his mother, and Unlimited Blade Works.

"He said I must reach the spiritual tomb of Avalon under the British Museum," Yuto said. "However, I know another method that didn't cost so much."

The plane they were travelling on landed at a disused airfield just outside London. There was a group of hunters. They were old friends of Bobby. They got into the car and then drove them to their London office, which was ironically 221B Baker Street.

"Bobby, old bear, I never thought you'd leave the Winchesters' side," the man said, patting Bobby on the shoulder. "Tell me, is it true what you said on the phone? Did you really find a way to stop the apocalypse?"

"This guy found it," Bobby said, introducing Yuto. "His name is Yuto and he's a novice hunter... even though..." Bobby made a strange face at the memory of how Yuto had killed the demons. "He is a master assassin."

"Do you really know a way to stop the end of the world?" the British hunter asked.

"His name is Victor. You can trust him," Bobby reassured.

"We're looking for Excalibur," Yuto said. "I have some clues about where it might be."

"So you don't know for sure," Victor stated.

"I know where it is, but it isn't easy to reach it," Yuto said. "I must enter in the Grand Coven's hideout under the British Museum."

Yuto explained them what Merlin had said him. He was careful not to say magus' name, but he revealed everything he knew about the Grand Coven and the Spiritual Tomb of Albion. Bobby and Victor didn't know anything about that, so they were very surprised to discover that the British Museum was built over a dragon.

"I will pretend to be a tourist and I will move when it will close," Yuto said.

"What should we do then?" Bobby asked.

"Honestly, I don't need your help. In fact, I didn't mean to be rude, but you are a hindrance to me, especially you," Yuto said, looking at Bobby. "Sam and Dean seem to care very much about you. I have a debt to them and therefore I don't want you to die." He put a bag full of stones on the table. "The British Men of Letters know we're here. You can use these if you are in danger."

Bobby took the bag and looked at its contents. He was extremely surprised to see that they were just stones.

"Well, I doubt they are so stupid to start a fight during the daytime. However, if this is not the case, we have an ally they don't know," Yuto said, freeing Fou from the cage.

"Where should we start?" Victor asked.

"Uhm… Bobby has left a message," Dean said, noting the message on his phone's voicemail.

"What did it say?" Sam asked curiously.

"You should hear it yourself." Dean put the mobile phone on the table and started the answering service:

[Hey, Sam, Dean, it's been a long time since we spoke. I hope you aren't in some crazy mess again. An apocalypse is enough. Anyway, I'm calling because I'm leaving. I'm going to the United Kingdom. I'll be away for a while. Well… I don't know how long I will stay there. I'm sorry that I can't help you right now. So please don't get into trouble while I'm not here. John and Mary are enough on my conscience, I don't want to have you too.]

Sam was increasingly surprised as he listened to Bobby's message. The sudden departure of their godfather had left them with many questions.

"Why does a man who has never been in Mexico leave so suddenly for United Kingdom?" Sam said, confused.

It certainly wasn't for a holiday. Bobby hadn't taken one since his wife had died. He had gone to oversea for some reason connected with the apocalypse. Sam and Dean had no doubt about it.

"Do you think he found something like the Colt?" Sam asked.

"Maybe... though I don't understand what he might have found," Dean replied.

"England is full of legends like Excalibur and the Holy Grail," Sam said, doing a quick search on internet. "Try to call him."

Dean nodded and called Bobby immediately.

Some minutes later…

[Dean?]

"Hey Bobby, I heard your message. What are you doing in England?" Sam asked, putting the phone on table.

[I'm paying off a debt I had with some friends.]

"What kind of favour?" Sam asked.

[I'm investigating some strange deaths. You know, they've been deprived of their heart.]

"Are you hunting werewolves?" Sam said surprised.

[It's a little more complicated than that. Vampires seem to be involved in this too.]

"Are vampires and werewolves allied now? What the hell is going on?" Sam asked, confused.

[The apocalypse is near, Sam. They too are afraid of extinction. I'm not surprised that they're willing to ally with their natural enemies.]

Dean raised his eyebrows, acknowledging the validity of this statement. He and Sam had allied with an angel to prevent the end of the world.

"Okay... um... do you want our help? If we asked Castiel to bring us there, we..." Sam offered.

[There is no need. I met Yuto. He's with me now, and… you can believe me when I say that he is a monster. You can continue your hunt.]

Bobby hung up the call abruptly, leaving Sam and Dean stunned. From their conversation, they noticed a certain haste in Bobby's voice.

"He's lying," Sam said simply.

"Blatantly," Dean nodded.

Bobby sighed tiredly as he put his phone in his pocket. He didn't like lying to Sam and Dean, but it wasn't about them. They already had a lot of problems and did not want to add more.

"Do you really trust what that boy says, Bobby?" Victor asked, doubting what they were doing.

"I don't know if Excalibur exists or not, but regardless of that... well... I don't complain about having an extra bullet in the magazine," Bobby said, looking at Yuto who was on the bike ahead of them. "I saw his power. It's real. It's... destructive."

"You think he can turn the war around? He's a mage. People like him are skilled at deception," Victor said, distrusting Yuto.

"Hmm..." Bobby muttered.

Victor was not wrong. Even if Yuto was helping them, it didn't mean he was doing it to help Sam and Dean. Moreover, he could not even rule out that the demons he had killed were part of a clever plan to gain his trust.

"I admit you're right. I don't trust him, but that power scares me," Bobby admitted, surprising Victor. "Regardless of what his side is, that gift is dangerous if used improperly."

A calamity was the most accurate word to describe Yuto. That sword was powerful enough to kill a demon along with the corpse of the possessed person.

"If a demon possessed his body, I'm sure it would become equal to the King of Hell," Bobby said.

Killing him would have been the best move, but unfortunately, Bobby knew that to do it meant calling death. Unlike many other monsters, he had no idea what Yuto's weak points were so that he could kill him.

"What is he doing?" Victor asked.

Bobby shrugged his shoulders.

It had been more than half an hour that Yuto was staring at an old tapestry with a war scene embroidered on it. It was nothing special, but Yuto looked at it with sadness.

"What's so special about it?" Bobby approached and asked him.

"It reproduces the battle of Camlann."

That event was something he didn't know personally but knew well. That battle had destroyed the lives of his mother and sister, all for a stupid throne and ungrateful people.

"I didn't think you were an art lover." Bobby turned around, recognizing the voice as that of Dean. His godson's face was startled.

"What the hell are you doing here?" Bobby asked, embrased.

"We thought you might need some more hands," Sam said, approaching Bobby. "What's really going on?"

"..." Bobby brooded in an uncertain tone. "You wouldn't believe me if I told you there was a vampire den, would you?"

Sam and Dean's stoic faces were an answer. They would not believe anything but the truth.

"I thought you weren't the type of people to visit an annoying museum," Yuto joked, turning toward Sam and Dean. "We shouldn't talk here. Let's go somewhere else."

"It's not just vampires and werewolves. The witches are also involved," Bobby said, capturing the interest of the Winchester brothers. "They seem to be holding a weapon that can kill Lucifer."

"What is it?" Dean asked.

"Excalibur."

Castiel was shocked by hearing that name.

"That's impossible," Castiel claimed. "It was stolen at the end of the Battle of Camlann and hidden by the Lady of the Lake in Avalon."

"Yeah, I know the story and I am well aware tht Avalon is unreachable. However I know another way to obtain Excalibur," Yuto said with firmable resolution.

"The Grand Coven had built their hideout inside the dead body of Albion. It is a source of magical energy," Yuto answered. "I know a way to reach Avalon but I need that energy."

"Do you know what Excalibur is? Castiel asked.

"If you have a better idea, you can propose it," Yuto said, observing Castiel sternly.

.

.

.

"If you don't, then I will continue to scout the museum," Yuto said, leaving the cafeteria.