This book is a very interesting read. I really enjoyed the book and read it cover to cover in less than a week, which is very quick for me. It is about a teenage boy who lives to dive. He has known all his life that he was adopted as a baby, but now as he is older, he feels incomplete and wants to find out where he comes from. The only clue he has to finding his mother is an ammonite (the snake stone) and a torn piece of paper with half an address on. James lies to his parents and sets off an epic adventure to find who he really is. The book is well worth reading and if you come from around the midlands I would reccommend it even more. From the first page I felt it was gripping, it is a book which I am definately glad I have read.