Sophie's life was completely normal...until Zack showed up at her doorstep with a wild look in his eyes. Sophie didn't know who he was or where he came from until he told her he was from an alternate dimension. Now they face a threat bigger than either of them have ever faced--and that's saying a lot, considering Zack has battled monsters bent on destroying his world forever. Through holographic dragons, spirits possessing computers and turning them into psychopathic killers, and giant mechanical aliens, Zack and Sophie must defeat the evil Author (yes, that's her name) and save both of their dimensions from shattering.