The Dread Lands

From the publishers blurb: The Dread Lands is a complete region-adventure filled with dozens of adventures, custom monsters, items and characters to met and play with. With over 53 pages, this adventure is designed to offer the DM a complete new region to play with, and a series of quests that follow a main story that's flexible and adaptable. This adventure is designed for a party of three or more players, and should take plenty of time, at least a week, to complete.