description: When Halloween arrives and Ashley and Mary-Kate don't have a mystery to solve, they begin to worry, but before they know it they are surrounded by werewolves and vampires and their friends are suddenly disappearing.
language: English
title: The Case of the Creepy Castle
titlecomplete: The Case of the Creepy Castle (The New Adventures of Mary-Kate & Ashley, #19)
genres: Mystery, Fiction, Childrens, Juvenile, Middle Grade, Halloween
ratings_count: 243
series: The New Adventures of Mary-Kate and Ashley
publisher: Demco Media