With the flaming boulder falling from up high, the group moved to their assigned locations. And as they left the fort, the boulders finally landed.
As one would expect, most of the flaming boulders flew harmlessly over the walls, or landed short of the walls. While the occasional boulder connected, the barrier protecting the wall easily prevented any damage.
The forts, on the other hand, quickly caught aflame. Left without a barrier, the boulders were free to land anywhere inside. However, even as the flames spread, the damage was minimal.
In preparation, most wooden buildings had been removed. Especially near the walls. And while the flames burnt hot, it could not melt stone. Nor could it bring the reinforced walls to a breaking point with just one or two volleys. Dozens would be required to destroy the walls.