I suppose The Butterfly Revolution by William Butler fits best into a sub-genre somewhere along side something like Glendon Swarthout's Bless the Beasts and Children and maybe even Lord of the Flies. The cover blurb suggests that as you can see. You can also read a brief review here.
The book focuses on an uprising at a Summer Camp and the establishment of a new, brutal order by the victorious young revolutionaries. It's copyright 1961.
It's not a slasher film, though the marketing and poster for the loose movie adaptation, Summer Camp Nightmare (1987) channels that vibe at least at a glance.
The big name in the cast is Chuck Connors as the camp director with Melissa Reeves of Days of Our Lives in a supporting role.
This Ballantine edition is from December, 1973, the 11th printing. Butler's other books include The House at Akiya and The Experiment.
