Moose’s world is turned upside down when his family moves to Alcatraz Island where his Dad has taken a job as a prison guard. Super-responsible Moose, big for 12, finds himself caught in the social interactions of this odd cut-off world. He cares for his sister who is older, yet acts much younger due to her autism and he finds his life alternating between frustration and growth. His mother focuses all of her attention on ways to cure the sister; his dad works two jobs and meekly accepts the mother’s choices; his fellow island-dwellers are a funny mix of oddball characters and good friends. Basing her story on the actual experience of those who supported the prison in the ’30s—when Al Capone was an inmate—Choldenko’s pacing is exquisite, balancing the tense family dynamics alongside the often-humorous and riveting school story of peer pressure and friendship. Fascinating setting as a metaphor for Moose’s own imprisonment and enabling some hysterically funny scenes, but a great read no matter where it takes place. (lengthy author’s note with footnotes to sources) (Fiction. 11-14)