A One-Round Living Greyhawk Highfolk Regional Adventure
From the introduction:
Only the company of good friends and a warm fire can stave off the bitter chill of a Ready'reat evening. Every so often, though, that is not enough, and the cold gets in, regardless of your efforts. What chill wind blows over Highfolk town, and how can it be stopped, before it's too late?
An adventure for characters level 5 - 10.