The Limit by Kristen Landon

Thirteen year old Matt lives in a world not much different from our own. In his reality, kids are taken to workhouses when their parents reach their debt limits.  Of course that could never happen to him. Until it does. Now he must figure out what's going on in his new "home" that's giving kids migraines, and why some of his fellow workers just, disappear.

Great kids book. Very action packed and a quick read!