Character tracer

The main character is called shelter/link. He used to live in another town with his mother but things wen't downhill from that he ended up lives on the streets of London with his friend Ginger. I'm guessing that he Is 16-17 years old because at one time int the book It comes out that he is under the age of 18. He seems like a good person and that he doesn't deserve to live on the streets and be a dosser.