Finally, the heroes have reached Vulpis' burrow. However, they must complete his request first.
The fort may seem difficult to defend - the Goblins are coming from a few directions. The first wave consists of Wolves, Archers, and Mages. The western group is the weakest (1) - this one consists only of a few groups of Wolves. The southern and western assaults are moderately strong (2). After dealing with the first northern wave, you will be attacked by Orcs (3).
Your position is great (4). You have 6 towers, although your units can access 5 of them. The north-west tower has no ladder, but you can access it by using a nearby scroll to summon Skeleton-Archers. Place all your heroes and Axe Throwers in the fortifications. Gather your troops outside the walls and place them inside the fortress. Also, order a few of the units to stand near the entrances. You now have to wait for the enemies.
Leave the fort only to eliminate Mages and Archers. Karric and Thurvid are the best for that. Remember to use the strength of your Boars to eliminate units with charge.