X-Men meets Spy Kids in the seventh and final installment of The Forgotten Five middle-grade fantasy/adventure series by the New York Times bestselling author of The Unwanteds.

Estero is in an uproar following corrupt President Fuerte's most brazen move yet in his quest to stay in power: his election night ploy, with the help of his superpowered henchman Hector, to hypnotize the country into believing that he—and not Magdalia Palacio, the rightful winner—received more votes. Luckily, Cabot escapes Hector's trance and uses her own mind-controlling ability to help her team of supers see the truth about the stolen election; together they begin the process of slowly un-brainwashing the citizenry.

When the president and Hector launch another attack, it becomes clear they won't go away quietly. With the inauguration looming, the Forgotten Five and their allies will need to undertake a daring raid on the presidential palace that requires all of their smarts and supernatural abilities to execute, and go face to face with a super more dangerous than any they've fought before. Can they knock Hector and Fuerte out of commission, ensure Magdalia takes power, and make Estero safe for its supernatural citizens, once and for all?