Trouble at Dragon Rift

A One-Round Living Greyhawk Bandit Kingdoms Regional Adventure From the introduction: “Let’s all live in peace and harmony” has to be one of the most uncommon phrases heard amongst the denizens of the Rift Canyon, yet someone is preaching exactly that to the evil humanoids of the Rift. Can you help keep this messenger of peace alive long enough for the message to spread? An adventure for [character levels] 4 - 12.