Zach says:
"It's where everybody fourteen or younger are in this cage that fifteen or older people just disappear from class, like the teachers. And then there's a fire in the daycare and Quinn and Sam have to solve it all by themselves, while Astrid and Edilio are driving in a car from people who are trying to kill them. And at the end Edilio gets eaten by worms. [Kaleigh's note - I'm not sure that's actually true but it's what Zach told me, and would I question my own kid?] Quinn gets twisted up in an impossible position in a car. I like this book because it's Sam's birthday at the end and that's when he disappears. [Kaleigh notes - that would be a totally awesome birthday present for a parent!]"