Jessica and her best friend, Ryan, find the perfect HorrorLand souvenir --a two-headed coin with mysteriously dark powers. After an unlucky flip of the coin, they find themselves in a strange land being chased down by angry guards. HorrorLand was scary but this is much worse. Will they be able to escape?

Twelve-year-olds Andy and Marnie, having enjoyed a day at Horrorland and received a gift souvenir from the Chiller House, take home a wish-granting hound's tooth which is supposedly haunted and soon learn that nothing is ever really free.

Matt Daniels battles a mysterious substance called Monster Blood that makes things grow, and then visits HorrorLand amusement park, where some of his friends disappear.

Heidi takes a road trip with her best friend Lucy Lancaster to the Wacky Wonders Adventure Park where there are water slides, wild rides, and plenty of friendship drama between Heidi and Lucy.

Abby and Peter pay a visit to their Uncle Jonathan who seems very knowable about Egyptian mummies, but they become suspicious at the strange sounds coming from a room inside his house, and their fears continue as they are invited to Horrorland.

What should Carly Beth be for Halloween this year? Terrified! Late at night an ugly green mask is mysteriously calling out to her. If Carly Beth survives the night, even a scary theme park might sound like a vacation. Or maybe not! At Horrorland, every night is Halloween. And those monster masks? They aren't masks at all.

Britney battles against her cousin's new ventriloquist dummy and discovers a frightening secret in a new amusement park called HorrorLand.

When June Bailey discovers the amusement park she always imagined has come to life, she must work together with the animals who run her park in order to save it from forces that threaten to destroy it.

It's a whole new ride from master of horror and bestselling author R.L. Stine--with a story so fiendish that it can't be contained to just one book! Michael Munroe is learning a few new lessons in school this week: Never trust a teacher who believes in monsters. Don't even think about entering her house. And stay away from the giant egg in her attic-especially if it's about to hatch.What could be worse than a monster egg? An entire theme park filled...

Junior sleuth Jeffrey Bones and his grandfather enjoy a day at the amusement park until their tickets to ride the giant roller coaster mysteriously disappear.