Sophie McKenzie: The Medusa Project: The Thief/Walking the Walls [2010] paperback

WALKING THE WALLS, Chris Higgins Felix is not scared to be different - but his fellow pupils find him confusing. Felix doesn't care, but everyone around him seems to have something to say about how he's living his life...Why can't they just let him be Felix? THE MEDUSA PROJECT: THE THIEF, Sophie McKenzie Fourteen years ago, four babies were implanted with the Medusa gene - a gene for psychic abilities. Now teenagers, Nico, Ketty, Ed and Dylan have each developed their own distinct and special skill. Brought together by government agents, they make up The Medusa Project - a secret crime-fighting force. On their way to a distant boot camp, the four teens are attacked and forced to carry out a high risk diamond theft ...