Where the Lost Things Go

Do you ever wonder where your lost items could have gotten to? Turns out, there's a world parallel to our own where all our lost things find themselves: socks, pins, hairbrushes - and children.
Yes, children can get lost too, falling between the cracks to a world of miscellaneous junk, and Pippa is one of those. She fall between the cracks and ends up in a place where kids band together in clans to scavenge for junk in order to survive. She is happy for the first time in her lonely life, but this world is not all it seems, and those in charge are not to be trusted.
This is a fantasy type story, with a little bit of violence, language, and blood so don't read if thats not for you.