From publisher blurb:
Welcome to the zany world of C.L.O.W.N., the greatest collection of jokers and pranksters this side of Stronghold (and they hope it stays that way). Some have guessed that CLOWN stands for the Criminal Legion of Wacky Nonconformists, but no one is really sure if it's an acronym, or just sounds good. (If the founders know, they aren't telling.) The purpose of CLOWN in your campaign is twofold: to provide you with a selection of truly unique villains to put a twist in your adventures, and to give your players a break from the same old world-threatening catastrophes and wrenching moral dilemmas.