At the top, however, a battlement slightly overhung it. To Dennis, gazing up, this battlement seemed terribly far off, and his heart sank as he felt that the ladder would certainly not be long enough. But it was possible that the apparent height was deceptive; at any rate the attempt must be made. Accordingly, Turnpenny and Copstone, as he had previously arranged with them, planted the ladder beneath the wall while he mounted. The first steps were easy, but when he came near the top he was seized with a momentary dizziness and had to pause before he ventured to take another upward step. He climbed very slowly: he was now close against the wall, with nothing to cling to, and he maintained his balance only by pressing forward until he was almost flat against the smooth surface. He reached the last rung; it was impossible to ascend another inch; and the top of the wall was still, it appeared, at least twelve feet above him. Even if the third section of the ladder was added, the coping would be still utterly beyond his reach.

It was a position in which many a bold fellow might have despaired, and, for a little, Dennis did feel dismay and a touch of compunction for having brought the men below into what appeared to be a hopeless case. But it is such moments as these that prove the grit of a man's character. Dennis was no weakling; and as he stood and leant against that wall, shrouded by the night, he set his teeth and vowed that by hook or crook he would ere long be upon the other side.

He looked up and around, to see if there were any notches or seams by means of which he could scale the wall. The moon was creeping round the sky, and now threw a little more light on the scene. Letting his eye travel slowly over every foot of the surface from left to right, he suddenly caught sight of what seemed to be a hole in the wall, some distance to his right, several feet above him, and a yard or so below the parapet. It flashed upon him that this must be a gun embrasure; was it possible, he wondered, to make his way in by that? Carefully descending the ladder, he told the sailors in a whisper what he proposed; they quickly lashed on the last section, and shifted the ladder until it stood immediately below the dark patch which at this distance the embrasure appeared to be. Then Dennis mounted again.

Once more he was disappointed. At the imminent risk of falling backwards he crept up to the highest point, but even then he found he could but just touch the lower edge of the hole. He had not sufficient grip on the smooth sill of it to pull himself up: he could not raise himself high enough to peep through. He wondered whether Copstone, who stood nearly a head taller, would have better success; but remembering the man's privations he thought it scarcely possible that he would have nerve enough to mount on this frail ladder, which bent dangerously beneath his weight now that the last section was added, without becoming dizzy and toppling down. Was there any conceivable manner in which the ladder could be still further lengthened?

Down he crept again and held another whispered consultation with the two men. At first neither was able to make a suggestion. They stood looking at one another in perplexity. Then suddenly Turnpenny, forgetting himself in his excitement, uttered an exclamation in a tone which sent a shiver down Dennis's back.

"Hush, man!" said Dennis in a warning whisper. "What is it?"

"Ah, I must talk gentle," said Turnpenny. "Of a sudden I thought of muscles and sinews, and the power of a strong back. Me and the headman of the maroons—not so strong as me, to be sure, but yet with mighty shoulders of his own—me and him betwixt us can raise the ladder aloft, and hold it firm while you mount, and then without doubt you'll be high enough to peep through the port-hole and see all that may be seen."

"Art sure you can do it, Amos?" asked Dennis, eagerly.

"Why, sir, look at this!" he returned, bending his arm until the muscle showed like a globe of iron.

Without more ado, Turnpenny and the maroon hoisted the ladder, and, one on either side of it, supported it with their shoulders. Then Dennis climbed on to Copstone's back, thence to the ladder, and began the ascent. The ladder was more tremulous than ever, and Dennis felt a flutter at the heart as he came nearer and nearer to the top. But the stalwarts below did not yield an inch, and Dennis crawled up and up until at length his head came to the level of the embrasure, and with one more step he found himself able to rest his arms in it. To his joy the embrasure was empty: the gun had evidently been withdrawn; and taking this as a good omen—surely it indicated great security on the part of the garrison!—he hoisted himself up and wriggled into the aperture. Then, breathless, with a hurrying pulse, he crouched to consider his next move.