Thor, former Norse God of Thunder, has returned to his day job at the Secaucus Holiday Inn, surlier than ever. His Google alert for “Ragnarok” is bringing in fewer and fewer results, and he’s beginning to think that the Twilight of the Gods might never come to free him from the hellish nightmare that is minimum-wage customer service.

But then Timmy, a telekinetic, telepathic super-squirrel, comes skittering back into Thor’s life, bruised and slightly smoking after having his tail handed to him by a two-hundred-year-old mad scientist in a robotic exoskeleton. The rodent needs help, and, despite his best intentions, that help is going to have to be Thor and his friends Chester A. Arthur XVII and Queen Victoria XXX.

Exponential Apocalypse: Dead Presidents, the second book in the Exponential Apocalypse series, continues where the first one left off, following Thor and company through a world rife with megalomanical clones, dinosaur armies, zombies, mad scientists, rhinos with lasers, and all manner of action and misadventure. Uproarious and unrestrained, Exponential Apocalypse: Dead Presidents puts the “doody” in doomsday and the “ha” in worldwide annihilation.