Soon, a group of knights discover you and enlist you in the short-term defenses of Dyfed. The Wargar have overrun the huge tower in the middle of town. The monsters are using it as a firing platform, showering destruction on the surrounding city. The knights want you to take control of a ballista in the next area and use it to splinter the tower, thus saving town hall—and the Lord Mayor within.
You've almost found the Lord Mayor, so there's no reason to slow down now. Burst into the courtyard in front of city hall and fight your way along the snaking path leading to it. You must eliminate the Wargar along the first hook of the path, and they put up a solid fight. Use cover and take the courtyard by inches. If you need a Regenerative Vial, look in the planter. As you round the bend in the path, make a break for the ballista. Weave around Wargar instead of fighting them. You can use the ballista to make short work of them in a moment.
After killing the Wargar manning the ballista, turn the weapon on the tower in the distance and pepper it with shots. It takes several strikes to destroy the tower, but you cannot just hammer away. Your partner will need help fending off a wave of reinforcements, so swivel the ballista to the courtyard and break the back of the Wargar infestation. When the tower finally falls, the Lord Mayor comes out of hiding and invites you to join him in his vault.
The Lord Mayor has a job for you, although he seems oddly hesitant to pay for your services despite literally sitting on a pile of gold. He says the Wargar have taken his daughter as well as many Dyfed citizens. He wants you to rescue them. He also has heard a rumor that the Wargar have access to a special potion—a silvery liquid—that is making them stronger. The Lord Mayor then opens a secret door leading out of town so you can pursue the Wargar...and their victims.