Castle War!

[Book 4 of the Castle Perilous Series] Castle Perilous is still tottering from last year's battle with the Hosts of Hell, and regaining stability proves a hard balancing act. Before Jeremy can design a program to calm the tremors of the universe, an alternative wicked reality appears which threatens to topple everything! Castle P. must face its evil twin, replete with its own dastardly doppleganger army--war with the shadow self ensues as Good vs. Evil battle it out in the 144,000th dimension!