Before the Hunger Games, Collins wrote a series of these books, which is about a kid who falls through a vent into a underland with killer rats, giant roaches, spiders, and bats. He also gets to find where is lost father has been all these months. I think it's a pretty interesting setting, it's also so predictable, but I think that's what happens with a book for 8 year olds or some age group like that. Her writing is still smart, but even though I copped the second one at the thrift store, I don't think I'll be reading onto the fifth, unless something really superduper interesting happens... sigh.