Book 2 in The Adventures of Mackenzie Mortimer trilogy.Mackenzie Mortimer is a typical junior high geek. He's shy, awkward, a bit clumsy, late with his homework, and always late for class. There's never enough time to do everything he needs to do; after all, there are only 24 hours in a day. But when Mac finds his grandfather's pocket watch buried deep inside a trunk, he discovers his days have an extra hour. According to the eccentric inventor's journal, the pocket watch can add up to 60 minutes to a single day by freezing time around whomever holds the watch and presses its button. Now, Mackenzie's troubles are just beginning! With his pocket watch destroyed, Mac finds himself a stranger in a strange land, surrounded by familiar people he doesn't really know, with only Gemma, a 15-year-old clone, to guide him through the labyrinth of the future. Will the mysterious black, iron key unlock the secrets to returning him home, or is it a harbinger of his impending doom?