Base of Operations, a short adventure intended for four 5th-level characters, is a site-based scenario designed to be either very brief (one or two sessions) or part of an ongoing campaign. Player characters have the opportunity to save a town from a horrible fate, rid the world of a vile necromancer, and find a little wealth in the meantime. Or, if the DM wishes, the adventure allows for player characters to set themselves up in their own "base of operations" and become permanent members of a community.
Marikest: The starting point for the adventure. The PCs may learn a little more about Brightstone Keep's history and the townsfolk's fears here, and they might use it as a place to retreat once or twice if things go wrong for them in the field.
The Road to the Keep: Fairly well marked (by the army that left a few months ago), this area attracts the occasional dangerous creature or party of brigands.
Brightstone Keep: Inhabited by orcs, trolls, and a few other nasty creatures -- not to mention some newly-created undead -- this site provides the setting for the final battle.
Finally, the day he waited for came.