Well, I read the Yoko Tsuno book. It was written in the eighties and reads to me a lot like a Nancy Drew book from that era. Some people (presumably) died near the end, but the deaths were not seen. The plot is still sound, but the technology is a bit outdated (magnetic tape computers, for example). I think it will work for the collection, but I'm not going to get any of the others unless a patron REALLY wants them, especially since it's a $12 paperback that won't hold up well. At less than 1/2 an inch thick, 8/12x11 size pages, it's going to get mangled.