Billy and Sheena go with their Uncle, Dr. Deep, to search for treasure and are pursued by pirates who have been dead for two hundred years, and when Billy and Sheena return to land and visit Horrorland they encounter their worse fears.

"What should Carly Beth be for Halloween this year? Terrified! Late at night, an ugly green mask is mysteriously calling out to her, and ugly green masks don't like to be ignored" (publisher).

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.

Julie begins to suspect that HorrorLand is not all fun after she is attacked by a giant spider.

"Jillian and Jackson freak out when they suddenly can read people's thoughts. But the trick turns to terror when the twins are stalked by a strange scientist who wants to know exactly what's on their minds. Will the twins ever lead normal lives again?"--Page 4 of cover.

The kids trapped in HorrorLand thought they had reason enough to panic. That was before they reached Panic Park - a perilous place that makes HorrorLand seem like HappyLand. Now they must find a way to end this scary journey, once and for all. All of HorrorLand's shocking secrets will finally be revealed ... but can the kids ever make it out alive?

Sam Waters is desperate to have a pet. But his parents say that first, Sam must prove he's responsible. So he takes an after-school job in a pet store called Little Shop of Hamsters. To his horror, Sam soon finds that cute, little hamsters can become very uncute monsters. Suddenly, Sam isn't fighting for a pet--he's fighting to survive!

"Chris and his twin, Meg, have a problem. It started the night before Halloween when the twins found a gang of bullies hassling someone in costume. The twins rescued the kid-only to find that it was a bald, pink alien who promptly swore allegiance to them. "Weirdo" is smelly and gross with a lot of disgusting habits, and the twins can't shake him. Little do they realize that their troubles are only beginning"--Publisher.

"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 Eve 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...