Welcome to the school for thieves! 'Here we will teach you to do wrong ... but only so that one day you will put the world right. It's Gabriel's third year at Crookhaven. Along with a Break-in challenge te Reclamation Island and a difficult new class called Signs & Signals, Gabriel and his friends have another goal: taking down the Nameless. The Nameless are the worst type of criminals - they steal, trick and lie for their own benefit, rather than to right wrongs. Each member of Gabriel's crew has a very personal reason for wanting to defeat them ... but can six school children overthrow the most powerful group of the Underworld?