"Trying to find it would probably be impossible," they say, shaking their head. It's a nice thought, but not worth the effort. "The library only has so many books, and most of them aren't even from my world. Or yours." In other words, please don't waste time on it, Sora. You have plenty of more important things to do than track down an old sci fi pulp from the 30s. "And remember that if I'm trying to find a memory, it doesn't work. It has to just happen. Like this."