Pumpkin Guts Versus the Vampires (Hotel Transylvania: The Series) by Shaw, Natalie - Paperback

On Halloween, a curious Mavis and her friends break with tradition and do something every monster has been warned not to do: they go trick-or-treating. How much trouble can they cause? Plenty apparently. According to legend, when monsters go out on Halloween they conjure up Pumpkin Guts, a centuries-old spirit who wants to turn all monsters into jack-o’-lanterns. Luckily Drac finds out and takes a short break from the Vampire Council. Surely he can help Mavis before she’s reduced to a pile of pumpkin seeds and guts!