By your Grave

Nathaniel Benjamin Cameron-Diaz has no one in his life. Apart from his two best friends Maria and Dean, he is completely alone. How ever he still has hope. The faint memory of his younger sister kept him looking, in hopes of finding his family. Nathaniel finds his sister, but a year too late. Now, it seems like it's all over, and he really does have no one. But there are still many questions left unanswered. Like who is this thirteen year old boy by his sisters grave? What is his relation to Nathans sister? Most importantly, what does this boy have to do with him?