Bone Gap by Laura Ruby

​Everyone knows Bone Gap is full of gaps —gaps to trip you up, gaps to slide through so you can disappear forever. So when young, beautiful Roza went missing, the people of Bone Gap weren’t surprised. After all, it wasn’t the first time that someone had slipped away and left Finn and Sean O’Sullivan on their own. Just a few years before, their mother had high-tailed it to Oregon for a brand new guy, a brand new life. That’s just how things go, the people said. Who are you going to blame?