A Clue in the Castle Tower: A Samantha Mystery

Samantha and Nellie are visiting England with their grandparents. They’re thrilled when a friend invites them to stay at a grand manor house, right next to an ancient castle. But when they arrive, Samantha and Nellie find out that a ghost may be haunting the grounds—and a thief may be lurking in the library! Can Samantha and Nellie uncover the secrets of Lockston Castle . . . before something precious is lost forever?