Do you like mysteries?  Books that keep you guessing?  Try Topher by Anita Horrocks.  Christopher and his sister, Stacie, are surprised to learn that their father has inherited his childhood home, a cabin on the lake, when their grandmother passes away suddenly.  For some reason, their father has always been very secretive of his past.  When they all decide to stay at the cabin for a few weeks, strange events begin occurring.  Is the cabin haunted?

Even stranger is the way Stacie has been acting.  Why does she have memories of the cabin although it's her first time there?

Christopher and Stacie attempt to solve the mysteries of their father's past.  It seems like a fun adventure to them - until they find that their own lives are in danger.