She nods and memorises them all. She is tempted by the other door -- she is immortal here, after all -- but heeds his advice.

Then starts looking through the shelves.

He's reading too, inhumanely fast even for skimming.

The entire library takes maybe an hour between them. There are plenty of mentions of those words - mostly focused on possession techniques, the 'mind body switch technique', speculation about how to keep a body intact with a mismatched soul...

Nothing directly applicable to them.

"Is this everything?"

"There's other places he has books stashed. A lot of other places. Many of them at other hideouts."

"Do you have a way to get to them quickly? Assuming you can just blast your way out of here."

"I can on both, assuming summoning works here. On foot - it would take me four days of constant running to get to the farthest." He goes ahead and tries, attempting to pull through a small snake who's usually prompt - and fails. "Summoning, unfortunately, doesn't seem to work."

"You'd still need to sleep, which... isn't a good idea. Not before you found a way to protect yourself."

"By constant I mean with no sleep. I can go up to two weeks, more if I'm pushing it."

"Two weeks here... might be fine. Without sleeping. But I need physical contact with you to send you back."

"I can carry you to the hideouts. But it might be best to just let him start experimenting, he keeps his mind-affecting techniques close usually."

"This effects you -- your mind and your body -- more than me. What do you want to do?"

"I doubt we'll find anything, and I'd frankly rather let him take the risk than me."

"Wise. So I guess that's the plan. Unless you have any other place you want to visit nearby."

None of his other potential recruits are near, so, "No." Pause, and, "I'm willing to help you with any goal of yours in exchange for help with mine, by the way. Not just escaping."

"My goals right now are; don't die. Escaping would be nice, but I'm immortal, I'm in no rush. I want to help you." She pauses. "Going home, if possible, seems... it seems like something I should want, I suppose," she trails off.

"What's at home?"

"That's the question, isn't it? Aside from... suffering, disaster and apocalyptic monsters? Not much. My uncles. But they slot into the first two catagories nicely."

"Sounds like this world, with lower frequency of apocalyptic monsters. Usually. Killing Orochimaru is only a short-term goal; longer term, there is something else I'd like help with - someone I'm planning to track down and kill for crimes he's committed. How far out does your offer extend? If you have something you want done in your world, I can help you find a way back, and do that."

She blinks.

"My uncle. He needs to die."

"So does my brother. Is he particularly difficult to kill?"

"Particularly. He's... hard to explain. He can link himself to people, and if I kill him, he just pulls on their energy and they die instead."

"How many people? Is there a time limit? If I placed him in an eternal illusion or destroyed his mind, would that get transferred too? Can he release the people, and therefore be forced to do that?"

"I've never been able to identify how many people. He keeps their identities secret. He also acquires their powers, so at any one time he might have an immunity or -- healing or something that protects his mind. He can release people, but he's not been known to."

"Some way of forcing him might be best, if we can manage it. Theoretically, there's a sword that traps its target in an eternal drunken illusion. It's also supposedly lost and of dubious existence."

"We could look for it. It might take us a long time. But we have a lot of that."