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 thief? Lexile 550, 64 páginas, Tapa Blanda, 1x13x20 cms, David A. Adler, 5 a 8 años.