For five characters level 3-5
From the introduction:
Welcome to Defense of Drakonheim, the third and final chapter in the Heroes of Drakonheim trilogy. Heroes of Drakonheim may be played all together or as stand alone adventures. The adventure is set in the fantasy city of Drakonheim, which can be incorporated into any larger fantasy world.
In Chapter 3: Defense of Drakonheim, the heroes must protect the city from attack. They have several days to prepare its defenses and seek out allies before the enemies reach Drakonheim. When the foes arrive, the PCs must attack key enemy units, trying to bring down the hobgoblin war chief who leads the attack.