When Joey stumbles into another dimension, he becomes prey to wicked magical armies who want to harness his power to travel between dimensions. To fight them, he joins an army of his own, versions of himself who are all determined to save many universes from evil. A dazzling tale of magic, science, and honor. Audie Award finalist. "Welch's high-energy reading fits the fast-paced story... Never flagging, this is a good choice for youngsters who eat up fantastical action."—Booklist