When the Pumpkin King vanishes, Halloween loses its head-and Mrs. Claus is the only one who can save it.The holidays have never been peaceful, but when a sinister letter arrives from the Halloween Council, Mrs. Claus knows something is deeply wrong. The Pumpkin King is missing, Halloween magic is unraveling, and ancient shadows are stirring in the forgotten corners of Octoberland.Armed with peppermint spells, sharp wit, and an eye for festive sabotage, Mrs. Claus assembles her most dramatic team yet: the eternally chilly Jack Frost, fashion-forward reindeer diva Felicia Sparklehoof, and Nibbles the tech-savvy squirrel. Together, they must brave cursed carnivals, haunted cemeteries, sarcastic vampires, and one disturbingly sentient candy factory to uncover a dark secret at the heart of the season.But something older than Halloween is awakening-and it wants more than just tricks and treats.Charming, spooky, and hilariously enchanting, Hallow's Eve Havoc is a magical whodunit full of festive flair, spooky thrills, and the fierce holiday spirit only Mrs. Claus can deliver.