The Horror at Camp Jellyjam is the 33rd book in the original Goosebumps series.
The original 1995 cover illustration depicts Counselor Buddy standing in front of the camp with a strange, wide grin on his face.
The 2009 Classic Goosebumps cover illustration depicts King Jellyjam inside his cave holding a mop.
Synopsis[]
Swimming, basketball, archery. King Jellyjam's sports camp has it all. Too bad Wendy isn't a total sports freak like her brother, Elliot. But how excited can you get over a game of softball. It's just a game, right? WRONG! Because Camp Jellyjam is no ordinary sports camp. And Wendy's about to find out why. Why the counselors seem a little too happy. A little too obsessed with winning. And why the ground is always rumbling late at night...