The first day of school is always full of surprises, but Cam Jansen is about to have the wildest morning ever! It is the start of fifth grade, and Cam and her best friend Eric cannot wait to meet their brand-new teacher. But before they even reach the classroom, everything goes wrong. First, their school bus gets hopelessly stuck in traffic, forcing them to walk. Then, they witness a car crashed right into a tree! Just when they think things cannot get any crazier, they arrive at school only to see their new teacher being taken away by the police! What on earth is going on? Click! says Cam, locking the chaotic scenes into her amazing photographic memory. Her mind is instantly off and running, determined to untangle this massive puzzle. Jump into this action-packed chapter book and see if you can help Cam solve the ultimate back-to-school mystery!