Is time running out for Granny Maggot? Jim Wimple is just about getting used to the idea that his dad is the Grim Reaper. Life's not easy when your Dad is death, though, and the worst bit is keeping it a secret. Not telling his best friend, Will, is really hard but so far Jim has kept his cool. Then he makes an alarming discovery - Will's granny is next on Dad's list. Time to lose cool, totally! Jim has just twenty-four hours to save Granny Maggot . . . and the clock is ticking, How will Jim keep her safe and keep Dad's job a secret?