The House on Eldon Road

The story of a young family who moved to Eldon Road, Reading from Croydon. The children Robert and Janet McCoull find a hidden room with a diary and a few other bits, including the gutted body of a wolf. They read the book and are drawn into the life of the writer. They went in search to find out who was the owner of the diary and where they are now.
They read on to identify the diary was written by an orphan in 1933, who lost his parents to a fire. He was thrown into a mental asylum and unspeakable tests were carried out on him.
As they were reading there were entries in the diary that didn't belong to the original owner. The people who made the two entries had different names.
They later find a second diary in another location of the house. The diary belonged to a young girl in 1942, Elizabeth Robinson. That diary helped them to identify who lived in the house.
One of the boys had lived in the woods and survived by hunting. A skill his father taught him. The other disappeared, so we thought. The first diary ends abruptly, and the new owners of the home go to piece the puzzle of the owners of the diaries together. Along the way, they uncover the truth or so it seems.
The novel shines a light on people's psychological behaviours and details one of the many known mental ailments, bipolar disorder and how it can develop.