From publisher blurb:
For a level 5 party!
Laugher’s Gorge occupies a stretch of the canyon that runs through the local badlands, named for the haunting laughter that occasionally erupts from its depths. When travelers using the road past the gorge become infected with cackle fever, it’s up to the party to find out what’s causing the mysterious laughing sickness. Though they find a pack of gnolls infesting the canyon, it’s no joke when they discover who (or what) is pulling the strings!
Laughter and humor are central themes in No Laughing Matter. The players are met with the will of a prankster god, riddles to solve, and may be forced to come up with some jokes of their own. But this isn’t an adventure to take lightly. If the party underestimates Laugher’s Gorge, they may find themselves infected with cackle fever… and there’s nothing funny about that!