America's favorite baby-sitters are detectives, too!
Mary Anne just got a job in a mystery bookstore! Unfortunately, the mysteries in the books aren't the only ones there. A throbbing heartbeat sounds throughout the building. A black cat is walled up in a room. The word nevermore comes to light on a shelf. A screeching raven appears out of nowhere.
Mary Anne loves reading spooky stories. But can she handle living in one?
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