The Horror at Chiller House

The Horror at Chiller House is the nineteenth book in the Goosebumps HorrorLand series. It was originally going to be the last, until Stine ordered six more books, bringing the total to twenty-five.

Plot
Jonathan Chiller told six of his customers that they could each take a souvenir home, and that they would pay him back the next time they saw him. Now, the time has come for him to collect. Now, the six kids must compete in a scavenger hunt, searching all of HorrorLand for six red chests that can each send one kid back to their home. But Chiller has no intention of letting them escape. In the guise of six of HorrorLand's most notorious denizens, he will be doing his best to block them at every turn... and in doing so, make sure the horror never ends.