Though I don't use this one all the time, I have frequently had my players direct the game into a place I wasn't directly planning. By taking some of these and having them handy, I can suddenly provide objectives that are well thought out with interesting characters/monsters. It's not too verbose, but it contains the right amount of dressing to help a DM throw an entire hunt into their game without much trouble. Excellent stuff.
[5 of 5 Stars!]