Arin looked around, settling somewhat when it looked like nothing else dangerous was going to happen.  "I don't think my uncle would set traps like this," he said, shaking his head.  "I've never seen or heard about anything like this.  There were a few accidents several years ago, before we took away his more dangerous spellbooks and magical items, but since then we haven't had anything like this happen."  He paused a bit, thinking and looking over at the bookshelf.  "No one else has gone missing, though, but I don't usually come here or watch the staff clean things."