The final assault on the castle usually depended on breaching the
walls, but it could also be achieved by simply climbing the wall. Scaling
ladders and ropes might be used beside or in place of siege towers. Attached
by grappling hooks to the walls, they could be countered by men
at the top of the wall who pushed the ladders off with poles, or cut the
ropes, or simply chopped off the hands of those climbing when they
reached the top of the walls. Ladders might be brought up to the wall in
pieces, as was the plan in a sneak attack on Edinburgh Castle in the eighteenth
century. This attack failed when one of the men failed to show
up with his section of the ladder. The plotters tried to scale the wall anyway
by using the sections they did have, but their ladder did not reach
the top of the wall. Such demonstrations of human frailty and incompetence
balance tales of daring and skill.