It might have been thought that after the disasters which had befallen the garrison they would not have suffered themselves to be again entrapped.

Douglas, however, ordered a number of his men to ride past within sight of the castle with sacks upon their horses, apparently filled with grain, but in reality with grass, as if they were countrymen on their way to the neighbouring market town, while once more he and his followers placed themselves in ambush.
Headed by their captain, the garrison poured out from the castle, and followed the apparent countrymen until they had passed the ambush where Douglas was lying.

Then the drovers threw off their disguises and attacked them, while Douglas fell upon their rear, and Walton and his companions were all slain.

The castle was then attacked, and the remainder of the garrison being cowed by the fate which had befallen their leader and comrades, made but a poor defence.

The castle was taken, and was again destroyed by its lord, the walls being, as far as possible, overthrown.
Shortly after the daring adventures of Bruce had begun to rouse the spirit of the country Archie Forbes found himself at the head of a larger following than before.