Welcome to Parallel University, where the students all come from parallel universes! After the cataclysmic crisis of Freshman Year, everyone is stranded on campus, with no means of returning to their home parallels. Now a familiar figure reappears, offering a way back-for a price. It's a devil's bargain, and only the four heroes of Freshman Year stand firm against it. But Fabia Terentia, the Roman gladiator girl, is secretly tempted by the offer...and soon finds herself swept into a shattering conspiracy that hurls her from one bizarre parallel to the next (bringing her face to face with the unlikeliest ally imaginable), finally landing her in the fiery furnace of creation itself-where the decision she makes will decide the fate of the entire multiverse.