With a good wall, the wights themselves were not a fearsome foe on their own, but their unending numbers and unrelenting assault had slowly started to grind the defenders down into exhaustion. They scarcely had any casualties save for when a wight managed to climb the wall over the burnt bones of the other fallen. They had fought in four shifts for nearly three days now, and the end was nowhere in sight. Thousands of wights had been burned so far, but that did not seem to diminish their numbers. The supplies of tar and oil were being kept as a last reserve, and they had started using linen to light up their torches and arrows.