Thirty years ago, Harold Biddle died in a tragic accident -- but there's more to the story. Now, the teenage kids of Harold's classmates are determined to find out what happened to him all those years ago... as long as Harold's spirit doesn't exact his revenge first!

But Harold Biddle isn't the only monster roaming the streets of Port Lawrence. From doppelgangers to haunted books and one creepy dummy, Isaiah, Margot, James, and the rest of their friends have to fight to stay alive or risk becoming monsters themselves!

This official YA novel tells the story of season 1 of the hit Goosebumps series -- plus additional scenes and information not seen on the show, including resolving the show's cliffhanger ending!