In this tale of two monsters, seventh-grade troll Malcolm McNastee is on a mission to rid Uggarland of misfits, especially Frankenstein (Frank) Frightface Gordon. Much to Malcolm's horror, Frank rescued Malcolm's disgraced dad from exile. This unspeakable act could tarnish Malcolm's true-blood troll reputation. On the other claw, Frank—a neat freak who's never fit the normal monster mode—must quickly reform under a new Uggarland law. If he doesn't, he could face exile—or worse. Malcolm decides to regain his good-monster standing by leading Frank and a band of misfits into the dangerous Shadowlands—where many enter and few emerge unscathed. Frank and Malcolm must brave the Shadowlands' perils, realizing that even if they make it out alive, their lives will never be the same.