Eleven-year-old Kieran wants to be part of the in-group at school. He wants to be on the soccer team. He wants to fit in. But then his weird cousin Bon turns up, both at school and at home. Bon's mom hasn't taken good care of him, and he knows nothing about fitting in, with his long blond braid, babyish hand-knit hat, and funny, precise voice. Bon doesn't play sports and likes to draw imaginary maps with stories about "Bon the Crusader" and "Kieran the Brave." No wonder the boys call him Rapunzel and throw his stuff around! With unflinching honesty, My Cousin's Keeper takes on childhood jealousy, family secrets, unexpected kindness, and the turning moments when the path diverges between being popular and doing the right thing.