Raymond had the faculty of inspiring in those about him this reverential tenderness; and not one of those stalwart fellows who were silently laying aside their heavy mail, and such of their garments as would be likely to hinder them in their swim across the moat, but felt a deep loathing and hatred towards the lord of this grim Tower, and an overmastering resolve to snatch his helpless victim from his cruel hands, or perish in the attempt.

All their plans had been very carefully made.  Lanterns and the wherewithal for kindling them were bound upon the heads of some of the swimmers; and though they laid aside most of their defensive armour and their heavy riding boots, they wore their stout leather jerkins, that were almost as serviceable against foeman’s steel, and their weapons, save the most cumbersome, were carried either in their belts or fastened across their shoulders.

Dark though it had become, Gaston had not lost cognizance of the spot whither they were to direct their course; and one by one the strong swimmers plunged into the sullen waters without causing so much as a ripple or plash, which might betray their movements to suspicious ears upon the battlements (if indeed any sort of watch were kept, which appeared doubtful).  They swam with that perfect silence possible only to those who are thoroughly at home in the water, till they had crossed the dark moat and had reached the perpendicular wall of the Tower, which rose sheer upon the farther side —­ so sheer that not even the foot of mountain goat could have scaled its rough-hewn side.

But Gaston knew what he had to search for, and with outstretched hand he swam silently along the solid masonry, feeling for that aperture just above watermark which he had seen before the daylight faded.  It took him some little time to find it, but at last it was discovered, and with a muttered word of command to the men who silently followed in his wake, he drew himself slowly out of the water, to find himself in a very narrow rounded aperture like a miniature tunnel, which trended slightly upwards, and would only admit the passage of one human being at a time, and then only upon hands and knees.

It was pitchy dark in this tunnel, and there was no space in which to attempt to kindle a light.  Once the thought came into Gaston’s head that if he were falling into a treacherous pitfall laid for him with diabolic ingenuity by his foes, nothing could well be better than to entrap him into such a place as this, where it would be almost impossible to go forward or back, and quite out of his power to strike a single blow for liberty or life.

But he shook off the chill sense of fear as unworthy and unknightly.  His Constanza was true; of that he was assured.  The only possible doubt was whether she herself were being used as an unconscious tool in the hands of subtle and perfectly unscrupulous men.

But even so Gaston had no choice but to advance.  He had come to rescue his brother or to die with him.  If the latter, he would try at least to sell his life dearly.  But he was fully persuaded that his efforts would be crowned with success.