Hammer of the Gods

Mild-mannered Zack Gilman is not your ordinary high school freshman. Once content to hang around his house in Minneapolis inventing cool gadgets and making mix CDs for his crush, Ashley, he now spends half his time in the ninth century with Viking warriors in search of three treasures that will fulfill his destiny as the legendary Lost Boy. Now there is only one more treasure left-and the journey to find it will be Zack's most harrowing yet. It lies in Asgard: the home of the Viking gods. And once Zack has it in his hands, only Thor himself knows what will happen.