About the walls ran a moat, fairly wide and apparently deep, formed by a stream from the mountains being dammed back and looped, so as to complete the circumference of the walls. The castle stood in a hollow, and the moat ran sluggishly at a level with the surrounding land, which was boggy and springy, as though the water often overflowed and covered it inches deep. The place seemed to reek with moisture, the walls being mossgrown and discoloured; while the thick woods, encroaching closely upon the narrow patch of grassy plain, seemed to add to the forbidding, cheerless air of the gloomy fortalice. The outer walls were pierced in one spot only, and that was at the main gateway. Here the moat was spanned by a drawbridge of modern appearance, but Edgar could see no traces of a portcullis, its place being taken by heavy oaken gates faced with plates of iron. Struck by the gloomy, unhealthy look of the castle, Edgar could not help exclaiming in a voice of deep concern: "I hope, Peter, they have treated Sir John well. The dungeons of such castles usually lie deep below the level of the moat. If they have immured him in one of those I fear for him. Sir John’s health hath suffered much from his many campaigns." "I hope not, Master Edgar. But we must hasten the more to release him, though how ’tis to be done I know not." "We, or I, might perhaps gain entrance in disguise, though that would mean a daylight entry, and we should be under observation, and could hardly hope to effect much. Besides, since the simple old priest so quickly penetrated our disguise, I have lost faith in our abilities in that direction--our tongue, I fear, betrayeth us all too quickly." Peter nodded in agreement. "Come, let us make the full circuit of the walls, Peter, keeping well within the shadow of the woods. So far, I can see no way in save by scaling the walls themselves." "By a ladder?" queried Peter. "Nay, a ladder would betray us, if not before we entered, certainly at dawn the following morning. Nay, but a rope and grapnel in patient hands should win an entrance." "A rope and grapnel!" cried Peter. "A rope we can doubtless obtain from someone among the country folk, but where may we obtain a grapnel?" "We can improvise one. A sword wrapped in cloths might be well lodged in the spaces betwixt those blocks on the summit of the wall--thy steel scabbard, Peter, with the rope tied to its middle, flung up and properly lodged, would easily take the weight of one of us. Ha, ’tis easy after all!" "But could we fling scabbard and rope to the summit of the wall from the distance of the edge of the moat?" "’Twill certainly be a long throw. Is there no place where a bank at the bottom of the wall will give us a footing? Look closely, Peter, and see if thou canst discern such a bank anywhere. If we can see none we must, when the time comes, swim the whole circle of the walls and feel for one. A footing in mud and water will serve our turn."