When Meg an Chris are visited by the Weirdo in the alien baby costume, it doesn't take them long to suspect that the costume isn't actually fake.

Goosebumps now on Disney+! After a trip to HorrorLand, Meg and her brother, Chris, can't wait to celebrate Halloween. Until that Weirdo in the baby alien costume shows up and begins to wreak havoc on their lives. They just can't seem to get him to leave. And Meg's beginning to suspect that his orange skin isn't a halloween disguise... What happens in the world's scariest theme park on the most frightening day of the year? Meg is about to find out when she's mysteriously called back to HorrorLand on Halloween. Can she survive the trick or treachery?

Goosebumps now on Disney+! Take a little Horror home with you!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. They each must find a red chest. Inside, the miniature Horror will act as a portal to send them back home.They'll be competing against Murder the Clown, Chef Belcher, Mondo the Magical, and three other unsavory characters from the previous six books. Little do they know that all six adversaries are actually Chiller in disguise. And Chiller will lie and cheat his way to victory.

Ray Gordon loves to scare his younger brother, Brandon. It's not hard considering Brandon is terrified of everything—loud noises, roller coasters, and especially the wooden dummy, slappy, that Ray got from Jonathan Chiller's HorrorLand gift shop. In order to throw his big New Year's Even party, Ray's parents make him promise to leave Brandon alone. But strange, mean-spirited things keep happening to his little brother, and Slappy always seems to be around for it. Could those words Ray read out loud actually have brought the dummy to life?

Goosebumps now on Disney+! Marco is a diehard fan of The Ooze, a comic book villain with the power to sludge his enemies. So when he finds a super-rare edition at the Chiller House gift shop, Marco is sure he has found something special for his collection. Outside of HorrorLand there are a few other people interested in the comic book. The kinds of people you don't want to mess around with. Like a muscular monster of a man dressed as The Ooze. But if he's only wearing a costume, why does he leave an oily mess everywhere he goes? And why is he following Marco?

Goosebumps now on Disney+! In HorrorLand's eerie gift shop Andy finds a hound's-tooth necklace. The big tooth is yellow, has two sharp points, and, according to the shopkeeper, is said to grant wishes. But Jonathan Chiller knows something else about the tooth. It's said to be haunted by the ghost of a huge hound. A ghost that's got a mouthful of sharp teeth--but wants this one back.

Luke and Lizzie think 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?