Mosquitoland by David Arnold

When her parents unexpectedly divorce, Mim Malone is dragged from her beloved home in Ohio to the 'wastelands' of Mississippi, where she lives in a haze of medication with her dad and new (almost certainly evil) stepmom.

But when Mim learns her real mother is ill back home, she escapes her new life and embarks on a rescue mission aboard a Greyhound bus, meeting an assortment of quirky characters along the way.

And when her thousand-mile journey takes a few turns she could never see coming, Mim must confront her own demons, redefining her notions of love, loyalty, and what it means to be sane...

Excellent condition.