Idea for a book
A young magician who flunked out of the wizarding university makes his living doing small hedge magics in the back streets of the city, including staging little shows in which he brings chalk drawings to life to perform scenes for the audience. But when the street children round where he lives start disappearing, he has to bring their own, bizarre chalk drawings to life to form a team with which he can search for them, in the process uncovering an awful truth that lies at the heart of the magical city.