Players leaving a dungeon and coming back

[Grail]

As to how to attack the players in town.... Nothing works better than sovereign glue on the doors of the inn and then setting it on fire. Even if the PCs manage to scramble out of the windows, they can lose loot, and what its more painful to a pc, a few scratches or lost dosh?

The other brilliant thing about that kind of attack its that it is risk free for the antagonists and they get plenty of opportunity to flee into the night. Also civilians will die in the flames, which will make the pc's unpopular in town if it is worked out why the inn was attacked.