No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! Mysteries follow super-sleuth Cam Jansen everywhere she goes...even to a ticket booth. Cam, Eric, and Aunt Molly are in line to buy  concert tickets when a person in a ghost costume starts scaring people. The ghost scares an old man, and he falls down. Then the woman in the ticket booth is robbed. Can Cam find the connection--and the thief? The Cam Jansen books are perfect for young readers who are making the transition to chapter books, and Cam is a spunky young heroine whom readers have loved for over two decades.