The chilling thrill ride begins when 12-year-old Britney Crosby has a run-in with her cousin's ventriloquist dummy. The dummy can talk without the help of her cousin, and it uses this rare power to tell her how much he hates her.

Billy and his sister, Sheena, unwittingly dive into a terrifying mystery when they accept a surprise invitation to HorrorLand, the amusement park that always lives up to its name.

After the worst Halloween ever, Carly Beth assumed that nothing could be scarier than a drooling rubber mask with a mind of its own. Until one year later, it comes back... and ugly, green masks don't like to be ignored.

Robby creates his own comic strips so he can freak out his friends and family. His favorite character is Dr. Maniac, a villain with a wicked grin and even wickeder superpowers. And now Dr. Maniac is on the loose...in the real world.

Abby and Peter are staying with Uncle Jonathan in an eerie old village. Their uncle knows a lot about Egyptian pyramids, and his living room even looks like an ancient tomb. Do other secrets lurk inside Uncle Jonathan's house? Mum's the word!

Who—or what—is summoning ordinary kids to HorrorLand and trapping them there? Luke and Lizzy are determined to find out. 

After an unlucky flip of a coin, friends Jessica and Ryan find themselves transported into a world of terror. 

Jonathan Chiller has called the kids from books #13-18 back to HorrorLand to collect payment. The only way for the kids to get back home is for them to win at a HorrorLand-style scavenger hunt.