When Adam and his friends find a cube-shaped crystal while hiking, they find it makes their wishes come true. Unfortunately, the stone wants to be paid for what it gives.

"Cindy is playing by the ocean with her younger brother, Neil, when a ghost appears out of nowhere and grabs the little boy and carries him away. Cindy tries to tell people what happened, but everyone assumes that Neil drowned. Cindy is left heartbroken, with no one to help her find her brother. Until Sally reads about what happened. Sally believes in ghosts-and she knows there are plenty of them to be found in Spooksville. With Adam and Watch, Sally...

The time has come for Adam and his friends to again face Spooksville's most powerful citizen, Ms. Ann Templeton. Sally says the woman is definitely a witch, but Adam and Watch are not so certain. To find the truth, they visit her castle together. There they find both good and bad: creatures more horrible than anything they could imagine, but also magical tools that can create the most wonderful things.

Spooksville has another invader, but they haven't seen him yet, just heard him on the phone. Suddenly everyone in the gang is getting calls from a creepy-sounding person. Maybe he is not a human being, but some kind of monster, because the things that he threatens come true.

Cindy Makey and Bryce Poole are hiking in the woods surrounding Spooksville when they are attacked by a blob-like creature. They try to fight it off but it grabs Bryce and seems to devour him before Cindy's eyes. Cindy manages to get away and warn the rest of the gang, but no sooner are they on their way to destroy the monster when Bryce appears. At first he acts normal, but pretty soon his friends realize that the Bryce who has returned is not...

Adam and his friends decide to explore a famous cave located just outside Spooksville, but they become trapped inside and are being followed by something big and black and hungry.