It's the end of the ride--for now! Fright-master R.L. Stine saves the most shocking surprises for last as all of HorrorLand's secrets are revealed!

Luke and Lizzie thin they'll be safe in Panic Park. But they're wrong. Because Panic Park is home to The Menace, a two-faced villain with a twisted plan to trap them forever.They learn they've been sharing secrets with a traitor, who's been tricking them all along! To beat The Menace and his rotten crew, Luke and Lizzie must team up with an old foe. But will they be double-crossed again?