With Halloween just a week away, tea-shop proprietor Kylie Strange doesn’t have much in the way of holiday spirit. She’s just learned that the last day of October also heightens the power of magic—which means the potential for a tidal wave of evil creatures to emerge from that supernatural Booke of the Hidden.
Destroying the ancient Booke once and for is the ultimate solution. But the only way to accomplish this task involves a journey to the Netherworld and the help of the only being powerful enough to destroy the Booke: Satan himself. And, though the brooding and elusive Erasmus Dark has captured Kylie’s heart against her better judgment, she ignores his repeated warnings that the mission guarantees her doom.
With Kylie in the Netherworld, her coven must stave off the onslaught of deadly creatures that emerge from the Booke—as well as hold back the encroaching destruction of the maniacal god Baphomet. Luckily, they’re joined by some unlikely friends in their fight against total annihilation.
But now Kylie’s journey becomes a rescue mission, and if she can’t complete her task and return from the Netherworld, all will be lost for the inhabitants of Moody Bog…and the rest of humanity.
Westerson's fourth and final Booke of the Hidden romantic urban fantasy (after 2019's Shadows in the Mist), centered on a magic book causing chaos, neatly ties up most of the loose ends and duct tapes the rest. Kylie Strange, the chosen host of the malevolent Booke, has resolved her romantic dilemma, choosing demon guardian Erasmus over stolid Sheriff Ed (who finds a demon of his own). With Halloween approaching, the Booke unleashes monsters faster than ever, forcing Kylie to travel the Netherworld and finally erase the Booke's pages. Left behind, her allies (the Moody Bog coven) and ex-rivals (a demon-summoning biker gang) have to contain the Booke's minions and an angry god while Kylie and Erasmus plead with a diffident if irritable Satan. Westerson generously parcels out the heroics among a diverse group of folks who undercut their stereotypes. The folksy local doc is a practicing Wiccan with immense occult savvy, and the town matron shows up in combat fatigues with sword in hand. In the end, the secret villain is quickly revealed, the lovebirds are happy, and readers who have followed Kylie's saga get a satisfactory finale.