Mack and the Magnifica have less than thirty days to round up the rest of the Magnificent Twelve and defeat the Pale Queen and her evil daughter, Risky. But before they can do that, they must somehow convince the traitor, Valin, to ditch Paddy Nine Iron Trout and swim over to the good side. Because without Valin, the Magnificent Twelve are just the Magnificent Eleven. And let’s face it: Eleven sucks. Twelve rocks. If they can reel in Valin, will their Vargran skills be enough to outwit the evil queen and princess? Mack’s hilarious adventures continue in this fourth and final installment in Michael Grant’s the Magnificent 12 series.