Finding H.F. by Julia Watts

Abandoned by her mother and raised by her loving but religiously zealous grandmother, 16-year-old Heavenly Faith Simms (H.F. for short) has never felt like she belonged anywhere. When she finds her mother's address in a drawer, she and her best friend, Bo, an emotionally repressed gay boy, hit the road in Bo's scrap heap of a car and head south. Their journey through the heart of the American South awakens both teens to the realization that there is a life waiting for them that is very different from what they have known and that the concept of family is more far-reaching than they had ever imagined.