The Fear Of Night

This book is about a boy who's parents and sister got killed by men and then after the boy felt alone and he thought that none of there to help him but he found a guy who helped him to get revenge and he also told that the a ghost is looking for him but the guy instead of being afraid helped him he met with with policeman and doctor who helped them. But both of them were killed by the ghost at last he he got
a man who had travelled from same situation and helped him, and at last something dangerous happened. He met a old man and it was his grandfather.