Based on a true story Marcus Sedgwick fuses mythology and mystery to create a compelling psychological thriller. People can't just vanish. Can they?... When two children disappear on a school trip, Porter can't shake the feeling that supernatural forces are at play... Developed in partnership with Barrington Stoke, using their dyslexia-friendly font. High interest, low reading age fiction that combines exciting stories with themes and issues - perfect for 11-14-year olds.