Hill side house is story of 3 sisters, Abhaya, Diya and Alisha, staying with their mother and their small pup, while father works in another city and visit once in a month. One accident with father, let father to reveal the story of unsolved puzzles of ancient times, and time lead them to such situations that they have to solve the puzzle or give up their life. So, reader will find out how they deal with such difficult situation and how they fall in an adventure & come up with remarkable discovery.