Sal planned it for almost a year before they ran. She nicked an Ordnance Survey map from the school library. She bought a compass, a Bear Grylls knife and a first aid kit using credit cards she'd robbed. She read the SAS Survival Handbook and now Sal knows a lot of stuff. Like how to build a shelter, snare rabbits and shoot an airgun. And how to protect her sister, Peppa. Because Peppa is ten, which is how old Sal was when Robert started on her.