In this fifteenth book about the irrepressible Sammy Keyes, she deals with the zaniest character to come out of her town yet — Justice Jack, Santa Martina’s very own superhero. Dressed in spandex and a mask, he drives around on a dirt bike hoping to fight crime. Though everyone else seems taken with Jack, Sammy’s not so sure and now that she has a real mystery to solve her detective skills are pushed to the limits by Jack’s antics. As usual, Sammy’s personal drama adds to the excitement in this wacky and wily adventure.