Heart in a Box by Catherine Stine
Inkspell Publishing, 2015
From the publisher: Each heartbeat leads Joss closer a shocking truth that will change everything.Joss Olstad wins the fight to switch from her private school to a public high to “find her pieces” she lost when the Indian artist father she never knew died. There, Joss struggles with a slutty friend, who flirts with her new love; Indian Culture Club girls who press her on her past, as well as her stoner mother’s lies back at home. Armed only with her handmade heart boxes that hold private messages, Joss’s search for identity leads her to a scary industrial section of Queens, and a shocking family secret that changes everything.