She's not wrong that it was partly for lack of anything better to do. Partly out of curiosity, both to see what people here considered a worthwhile test of courage, and to see whether ghosts supposedly long dead would tell the same story about the world they're in than what he's heard from the current locals. And also partly as a test of himself; he hadn't felt well for a few days after returning from his mission with Rokuro. Taking on this challenge was a way of proving to himself that it had passed, that maybe it had been some common illness and not proof of the necessity of tethers.

He's more exhausted from the ordeal than he rightfully should be, though whether that's an effect of being untethered, the remains of an unrelated illness, or something the ghosts had managed to do to him, is hard to say.

He shrugs. "The prizes seemed worthwhile enough, if they really do anything." He doesn't trust the ability of the charm in his hand to actually somehow provide a symptom-free resurrection from death, but perhaps it will at least have some use even if not precisely that.