After school, a young boy is walking home when he hears whispers behind him. He turns, but no one is there. It happens again and again. There's something alive inside his backpack! Is it a ghost? A monster? With short chapters, easy-to-read text, and enhanced back matter, Boo Books deliver just-right frights (without the sleepless nights) for the earliest readers. The Capstone Interactive edition comes with simultaneous access for every student in your school and includes read aloud audio recorded by professional voice over artists.