Goosebumps Most Wanted: The Haunter by: R.L. Stine
Fiction: Children, paranormal, 175 pages
Physical Book Count: 55
Book Count: 70

Sammy Baker is a shy and quite kid.  He is easily frightened and picked on by the class bully.  For Halloween his teacher assigns group projects on spooky subjects.  He gets one on ghosts in a group that includes his best friend, the bully, the cute girl and the class clown.  They decide to visit to local haunted house on Halloween night to study ghosts.  They don't find anything to prove ghost, but weird things happen to them, and after that Sammy hears a voice in his head that he cannot say no to. . .