"They would not attempt to attack the fortress itself," Sir Eustace said; "but if they could seize this outwork by surprise it would mightily aid them in their attack on the fortress; at any rate I will send down five archers, and if any of the enemy crawl up to see how wide the water is here, and how the attempt had best be made, I warrant that they will not return if the archers can but get a sight of them. Post half your men on the wall, and let the others sleep; change them every two hours--we want no sleepy heads in the morning."