Haelsford, Florida, is a Hellmouth. Or at least, that's what Logan, a new witch struggling to control her powers, thinks as she arrives to begin the new school year at Mesmortes Coven Academy. She is immediately taken under the wing of the infamous Red Three. Iris, a deathwitch, who wants nothing more than to break the town's curse; Thalia, the talented greenwitch, is on the run from her religious family and a past that still haunts her; and Jailah is one of the most powerful witches at the academy but her thirst for power may lead her down a dark path.

After defeating the Wolves, Jailah, Logan, Iris, and Thalia want nothing more than a summer of fun and relaxation. But there is no rest for the wicked, especially when Death comes for Iris. She is to become a Reaper, tasked with banishing souls who refuse to cross over. But Iris suspects there's something more ominous going on when Mathew's role as her tether grows sinister.