When Moose Flanagan and his family move home， yet again， and become residents of the famous prison island Alcatraz， things get interesting. First of all， they share the island with a few other families and a lot of pretty heavy-duty criminals including Al Capone. And secondly， Moose s sister is starting a new school， which everyone hopes will help her become more integrated with those around her. When Moose comes up with some pretty cunning money-making schemes based on his famous co-residents， he does not count on his sister becoming inadvertently involved. This is a charming， funny and utterly enchanting book that skillfully and delicately weaves a humorous tale with some important issues.