"Seventeen-year-old Phoebe was never interested in her birth family. But on the cusp of her high school graduation, her adoptive mother, Greta, insists on a visit to meet her biological parents and siblings. The encounter is a jolt, a revelation that derails Phoebe. With the help of her best friend Luna, Phoebe runs away--as far as their friend Patrick O'Connor's chaotic home, where she hopes to go unnoticed among his thirteen siblings. What begins as a adolescent rebellion soon spirals into a whirlwind of transformation and self-discovery. As Phoebe grapples with her shifting identity, she must navigate the tumultuous road out of girlhood and chart a new and unknown course."-- Provided by publisher.