Eleven-year-old Ruby Danes is about to start middle school, and only her aunt knows her most secret secret: her mother is in prison. Then Margalit Tipps moves into Ruby's condo complex, and the two immediately hit it off. Ruby thinks she's found her first true-blue friend — but can she tell Margalit the truth about her mom? Maybe not. Because it turns out that Margalit's family history seems closely connected to the very event that put her mother in prison, and if Ruby comes clean, she could lose everything she cares about most.