In this immediate New York Times bestseller, Spy Kids and the X-Men collide! The creator of The Unwanteds has released the first volume in a brand-new middle-grade fantasy/adventure series. Eight supernatural criminals left Estero City fifteen years ago in order to start again in a remote tropical refuge. Over time, seven of them vanished without a trace and were likely killed or arrested. And now the last one has passed away. The five offspring of the criminals, each of whom possesses unique superpowers, are left behind to fend for themselves: Birdie can speak animal language. Brix is athletic and has a rapid recovery time. Tenner has fish-like swimming abilities, night vision, and distant hearing. Seven's skin blends in with the environment to blend in. No indications of Cabot's any unusual power?yet. Then one day Birdie finds a map among her father?s things that leads to a secret stash. There is also a note: Go to Estero, find your mother, and give her the map. The five have lived their entire lives in isolation. What would it mean to follow the map to a strange world full of things they?ve only heard about, like cell phones, cars, and electricity? A world where, thanks to their parents, being supernatural is a crime?