A/N: Well one of the fun things about me is I like all kinds of things. But some end up being so awesome that they deserve a crossover with Sanctuary. Preferably written by someone more talented than I am, but eh. I will have to do. I hope this makes some sense to some people (I already said that if you are a Sanctuary fan you HAVE to watch season 1 episode 9 of The Librarians), no idea what you should watch if you're a fan of The Librarians, try watching pretty much every Sanctuary episode xD)

To fans of both shows: This started as a let's have Cassandra meet Nikola Tesla and have some geekiness ensuing. It will probably be just that with maybe some more plot added.

Being a Librarian had its advantages, but money was not one of them. Besides, being a librarian also meant retrieving cool artifacts and if said artifacts only happened to be inside one of the most heavily guarded museums in the world, or so they said (that hadn't been that much of a problem after all), well, it was certainly not Ezekiel's fault. He was just going to borrow the damn thing and take it back to the Annex for…research. Yes, that was precisely what a Librarian had to do.

What Ezekiel wished a Librarian didn't have to do however was hanging over a case that clearly had a pressure sensor with a clipping book in his pocket that suddenly started to jump around. Who the hell had the idea of making them pocket sized anyway? And then of course the damn book had to fall exactly on the pressure sensor and to activate it and Ezekiel barely had the time to take the book and put it in his pocket and run the hell out of there before security arrived. But he was used to that part. Heavily guarded museum his ass. All it took was a "Sorry mate have to go, a battery has been stolen or something, I am the Librarian after all." and they let him go. Or at least that was the story he was going to tell should anyone ask. When he finally stopped running in order to take a breath, Ezekiel let out a small curse. Since when being the Librarian meant searching for stolen batteries? No, he was going to pass this to another Librarian. The battery had proven enough trouble already.

Days off were boring, Jake decided. As much as he had wanted a break from the Library, he soon discovered too many breaks were bad for his brain. He had to wear his usual costume and for the first time in many years, it had begun bothering him. He could keep things hidden from his family, true, but the last months had leaded him to believe that there was no need to hide anymore. Of course, all that faded when he first stepped into his house and he was greeted by his ten year old niece. He couldn't possibly tell her that magic was real, because that would have meant putting her in danger. It was the right thing to do. So that week when he went home he had hid his clipping book in one of his drawers. Every Librarian deserved a week off in the end right?

"Uncle Jake, Uncle Jake, look what I found!" His niece called, storming into the room. "There was this book in your drawers and it seemed pretty normal at first but then I know it will sound weird but it started humming and I opened it and it's just some clipping from a newspaper. Weird huh?"

"That drawer was locked, Megan." Jake said with a sigh.

"Uhm… You probably left it opened." The little girl shrugged but Jake was having none of it.

"What did you talk about with Jones when he came here exactly?"

"Oh well, you know. School mostly. Speaking of which I remembered I have a homework I really have to finish so I'll go now." Megan grinned. "By the way, cool book. What does it do?"

"It doesn't do anything, sweetie. I just had this crazy idea that I might collect newspaper clippings I found interesting. It's not much to do at work anyway." Jake blabbered.

"Yeah but an Egyptian temple? Doesn't seem your kind of thing."

"And breaking into locked drawers sounds like your thing, young lady?"

"Right. Homework. I really have to go." The girl smiled and left, leaving Jake alone in the living room. The Temple of Hathor from Dendera. Jake read in the book. Sometimes you just know when your week off has come to an end…

"You can do this, Cassandra." She told herself for the 516th time. No, she hadn't exactly wanted to count that, but it still happened. She didn't exactly hate her parents, after all she couldn't blame them because there wasn't exactly a book on how to deal with a kid who is dying and there isn't a book that teaches to deal with having to choose between having the perfect kid or lose your kid forever. But there was still a part of her who wished they had understood her more; that wished that she hadn't felt like the Library was more of a family to her than them. But that part of her was what had leaded her to almost destroy the world. Yes, life was unfair. But it wasn't like she could have done anything about it.

She stood in front of her house for a while, trying to convince herself to go inside. In theory, she had to talk to her parents, because she was dying and she had to say goodbye. But then again, the probability of her dying this exact year was… well taking the size of the tumor into consideration and the fact that she had pushed herself harder since she began working for the Library, it was more than 75%. But if she took more care of her, she could have still had the chance to get to the next Christmas and she was going to talk to her parents- Right. They didn't celebrate Christmas. Well tough luck because the next year they were going to. They owed her at least that. And if she was nice enough to Jenkins maybe he was going to let her call Santa and invite him over.

She clutched her clipping book in order to gain some courage but the moment she touched it, the book began to glow in her hands. It only took her a second to decide to open it and she couldn't help a smile. She closed the book and did an 180o turn. Her parents could wait. Family was calling her.

"Jenkins! Flynn! Anyone home?" Ezekiel called as he entered the Library, but nobody answered. "Oi, we need to talk." He yelled to the ceiling. "You don't get to call me at any time, especially not when I'm…"

"Trying to break in the British Museum?" Jenkins ended the phrase for him. "You don't get to decide when we call for you. And the Librarian wants to have a talk to you about the museum."

"And I want another case. I ain't running half the world to find a stupid battery. I have more important things to do."

"Like teaching my niece how to break locks?" Jake asked as he entered the room. "We need to have a talk too about that."

"Chill mate, it seemed a fun thing to do, alright?"

"Oh jolly, the whole gang is here, all we need is-" Jenkins muttered but wasn't able to finish the phrase because Cassandra entered the room.

"Great, you're all here!" she beamed. "Guys you won't believe what appeared in my clipping book."

"Silence. I am so going to miss that." Jenkins sighed. "No offense."

"None taken, but the girl is right." Flynn said as he entered the room. "The Librarians are all here. Together. After I gave them separate clipping books. Can't be a coincidence."

"I really need to tell you what I got in my clipping book." Cassandra interrupted him. "It doesn't make any sense, at least not yet, but…"

"Give me your clipping books. All of them." Flynn demanded. As he took the books one by one, a smile spread across his face.

"You came back." Eve said as she went down the stairs. "Tell me, Librarian, what was so important that I couldn't come with you?"

"Well. Hard to explain, but what is more important now is that they're here. They're all here, Eve, do you understand? All of them."

"Yeah but it's just a coincidence. Right?" Ezekiel asked.

"A part of me hopes it is." Flynn grinned. "Are you sure?" he asked, raising his head at the ceiling. "You really think they have to know the gang?" But then his eyes fell on Cassandra's clipping book and he smiled knowingly. "Fine. But if anything goes wrong, it's your fault."

"Can someone please explain me what the hell is going on? Our cases don't seem connected, I mean I have an Egyptian temple and Jones has a battery." Jake argued.

"Oh they are connected. You should all see what Cassandra has. But first, I'll make a call."

"To whom? It's 3 o'clock in the morning. Most people sleep at this hour."

"Not her."

"Her?" Eve asked annoyed.

"Oh no, no, nothing like that. Just that you see, I am *the* Librarian. You three are the librarians, with a more boring the. She… she's the Doctor."

"The Doctor is real? And she's a woman?" Ezekiel's jaw dropped.

"Not Doctor Who, even if I call her that sometimes, mostly because she's British and... Nevermind. Don't tell her that, she's pushy." Flynn explained briefly as he stepped towards the phone and began dialing.

"How will this doctor help us?" Cassandra asked.

"You of all people will love to hear this." Flynn laughed as he put the phone on speaker.

"Doctor!" He called joyously the second the call was answered.

"Librarian." The woman's tone was cold. "Do you have any idea what time it is?"

"Well I wouldn't have called but it's an emergency. And you weren't sleeping anyway."

"Doesn't mean I wasn't busy."

"Oh. Too much info, I guess. Anyway I know we had our differences in the past but I really need your help."

"What do you want, Flynn?"

"It's going to sound weird but do you happen to know anything about the whereabouts of Nikola Tesla?" Flynn asked.

"He's in bed." the voice sounded more amused now. "Right. I haven't told you."

"I get that he's in bed because I know what time it is, but where is he?"

"I meant in bed with me." The voice was now laughing. "And if you even think about commenting on my tastes do I need to remind you that 5 years ago-"

"No, you don't." Now Flynn's tone was cold. "We're coming tomorrow. Don't bother giving me the address; I can get pretty much anywhere you have a door."

"One of the things I hate about you." the woman on the end of the line giggled. "See you tomorrow, Librarian."

"Good night, Doctor."

"I won't be sleeping. But you know that." The woman said as she hung up.

"OK, who is this woman? You two seem pretty close." Eve said on an angry tone.

"Forget about her, did she just say Nikola Tesla is alive? The Nikola Tesla?" Cassandra asked and Flynn smiled at her. "You four may want to sit down. This will be a long talk."