The Case of the Creepy CastlePaperback - 2000
Trenchcoat Twins Case Report...from Mary-Kate & Ashley
How scary is this: It was Halloween, and Ashley and I didn't have a mystery to solve! Yikes! But things were about to get even scarier.
Great-grandma Olive took us and our friends to a fun house called Creepy Castle. Before we could say "boo!" we were surrounded by werewolves, vampires--even a suit of armor that walked around all by itself!
And then our friends started to disappear, one by one! Soon Ashley and I were the only two left. If we didn't crack this case fast, the next visitors to vanish would be us!