"How intact do remains need to be?"

"Not at all; dust from disintegration or ashes from cremation work fine. I should mention that there's a bit of skill loss for resurrected people; nothing that can't be regained, usually, though in children it sometimes manifests as a permanent loss of endurance instead."

"I'll pass on the warning. - One of our clans cremates their dead, and I'm unsure if they keep the ashes, but they do keep the eyes." Which is a fascinating custom, never mind that everyone else seems to think it's creepy. "Are parts enough? Will it complicate matters if a part that originally belonged to a to-be-resurrected person was transplanted into someone living, and then used for the resurrection?"

He'd rather Madara not put his brother Izuna back without some serious thought, given Izuna's opposition to the peace treaty, but he recognizes that'd likely be the most effective peace offering. Unfortunately, the only known piece of Izuna currently resides in Madara's skull.

"Parts are fine," he nods. "I'm not sure about transplants, but I should be able to find out with a divination spell."

"It'd be useful, yes, if it worked. You said your spells require preparation?"

He nods. "And a transplant might need another spell or two to be a suitable focus - if we had more time, I'd want to try multiple divinations, to figure out which ones are necessary, but as is -" he considers. "The first thing to do would be a turning, which will destroy it if it's actively undead but yield useable dust. If that doesn't do anything, I'd expect Purify Food and Drink to handle any physical problems and Dispel Magic to cover any magical effects - possibly Greater Dispel, if that seems necessary. I can cast the divination before any of those, though; it might tell me what exactly is needed, and should at least tell me if the whole course will work."

"Would the soonest you could do anything be tomorrow, then?"

"I can try the turning today, if you want to see progress, but the rest will need to wait until tomorrow, yes. And I do want to know more about the situation."

"We'd rather the divination first, and the proof of concept of the resurrection. If the limit is three people - the first will be the test case. Once a person is chosen I can provide you their profile. The second will most likely be one Uchiha Izuna, though the clan might choose someone else. Izuna was the clan head's younger brother during the wars; one of the major obstacles to a peace treaty between the Uchiha and Senju was his death on the battlefield. Returning him would be mostly symbolic, though I'd ask for a guarantee from the Uchiha that he wouldn't cause problems first. If they believe he would, I would still allow their clan the first non-test resurrection, just of someone else. The third slot will be up to the Hokage; since we can't show favoritism, and the Hokage is Senju, it's unlikely to go to someone from my clan. Likely, the Shimura-Sarutobi faction will be allowed their pick, since the Yamanaka could count for themselves and their allied clans, and that would cover three of the first four factions to join - the fourth being the Senju."

"That sounds sensible. And it might be possible to talk Ertan into staying for another day or two; I haven't taken the time to talk to him about it yet."

He nods. "We'd appreciate it, certainly, or at least some method of getting into contact with others with your powers."

"I don't have anything like that that I'm sure will work across worlds - once I'm home I can get a Gate scroll, though, that'll let me bring several people back."

"And transit isn't impossible with our system - I could easily make interdimensional travel my next project. The most likely near-term solution would involve anchors on either side, though, which would involve some level of back-and-forth to set up."

Nod. "That might be the better bet. Do you expect to need anything in particular as an anchor?"

"Yes; a specially designed inscribed technique. If we're unable to reestablish contact conventionally, I might be able to use a different space-time marker, which I can send back with you, if you'd be willing."

He nods. "How long do you expect that to take?"

"The space-time marker I currently have developed: a few seconds. Proper interdimensional travel... Harder to say. I've created space-time techniques, but nothing on that scale. It could take me a week, especially given information about how dimensions work and if my other techniques can be re-purposed. It could take me ten years, if any of my assumptions are fundamentally false."

"I can certainly bring a marker home with me. I'll have to talk to Ertan about the other one."

"Even if you just plan to wander back this way every now and then, it'd be worth putting an anchor-based transit system at a high priority."

"I can't promise anything; we don't have anything targeted, yet - we might be talking past each other. Our world doesn't have casual - mind-reading, or whatever it is you're using to check that I'm telling the truth; it's a little disconcerting, and Ertan wants to try another world where that's not a concern. But we don't have a way to get back, if we leave the world, until we get back to our own, unless we happen to find one on the way."

" - It's not mind-reading. It's chakra sensing, and here not considered more invasive or accurate than reading body language. It only picks up on what you put out into the world, and learning to control it is roughly the same difficulty as controlling your expression. I'm not actually capable of reading emotions off body language or chakra, and the person I usually check with - Uzumaki Mito - can't sense into this room. She's significantly better than anyone else I've ever heard of at reading people in general; if it's something that bothers you, being on a part of the continent where the Uzumaki aren't should avoid the problem, as long as you aren't blatantly leaking killing intent."

"Ah. That'll help significantly, I think. Even just knowing what it is, probably." He takes a moment to speak to Ertan, and nods. "He'll need some time to think about it, but it does help."

He inclines his head. "Is there anything we could do that would help promote contact?"

"I'm already working on that; more examples of trade goods and things your magic can do that ours can't would be useful, but I expect I'll have it pretty well covered myself."

"I wouldn't mind putting together a comprehensive list in both directions. We clearly have referential gaps."