Gilliatt was pressed on all sides by demands upon his labours. The most pressing, however, was to find a safe mooring for the barge; then a shelter for himself.

The Durande having settled down more on the larboard than on the starboard side, the right paddle-box was higher than the left.

Gilliatt ascended the paddle-box on the right. From that position, although the gut of rocks stretching in abrupt angles behind the Douvres had several elbows, he was able to study the ground-plan of the group.

This survey was the preliminary step of his operations.

The Douvres, as we have already described them, were like two high gable-ends, forming the narrow entrance to a straggling alley of small cliffs with perpendicular faces. It is not rare to find in primitive submarine formations these singular kinds of passages, which seem cut out with a hatchet.

This defile was extremely tortuous, and was never without water even in the low tides. A current, much agitated, traversed it at all times from end to end. The sharpness of its turnings was favourable or unfavourable, according to the nature of the prevailing wind; sometimes it broke the swell and caused it to fall; sometimes it exasperated it. This latter effect was the most frequent. An obstacle arouses the anger of the sea, and pushes it to excesses. The foam is the exaggeration of the waves.

The stormy winds in these narrow and tortuous passages between the rocks are subjected to a similar compression, and acquire the same malignant character. The tempest frets in its sudden imprisonment. Its bulk is still immense, but sharpened and contracted; and it strikes with the massiveness of a huge club and the keenness of an arrow. It pierces even while it strikes down. It is a hurricane contracted, like the draught through the crevice of a door.

The two chains of rocks, leaving between them this kind of street in the sea, formed stages at a lower level than the Douvres, gradually decreasing, until they sunk together at a certain distance beneath the waves.

There was another such gullet of less height than the gullet of the Douvres, but narrower still, and which formed the eastern entrance of the defile. It was evident that the double prolongation of the ridge of rocks continued the kind of street under the water as far as "The Man Rock," which stood like a square citadel at the extremity of the group.

At low water, indeed, which was the time at which Gilliatt was observing them, the two rows of sunken rock showed their tips, some high and dry, and all visible and preserving their parallel without interruption.

"The Man" formed the boundary, and buttressed on the eastern side the entire mass of the group, which was protected on the opposite side by the two Douvres.

The whole, from a bird's-eye view, appeared like a winding chaplet of rocks, having the Douvres at one extremity and "The Man" at the other.

The Douvres, taken together, were merely two gigantic shafts of granite protruding vertically and almost touching each other, and forming the crest of one of the mountainous ranges lying beneath the ocean. Those immense ridges are not only found rising out of the unfathomable deep. The surf and the squall had broken them up and divided them like the teeth of a saw. Only the tip of the ridge was visible; this was the group of rocks. The remainder, which the waves concealed, must have been enormous. The passage in which the storm had planted the Durande was the way between these two colossal shafts.

This passage, zigzag in form as the forked lightning, was of about the same width in all parts. The ocean had so fashioned it. Its eternal commotion produces sometimes those singular regularities. There is a sort of geometry in the action of the sea.

From one extremity to the other of the defile, the two parallel granite walls confronted each other at a distance which the midship frame of the Durande measured exactly. Between the two Douvres, the widening of the Little Douvre, curved and turned back as it was, had formed a space for the paddles. In any other part they must have been shattered to fragments.

The high double façade of rock within the passage was hideous to the sight. When, in the exploration of the desert of water which we call the ocean, we come upon the unknown world of the sea, all is uncouth and shapeless. So much as Gilliatt could see of the defile from the height of the wreck, was appalling. In the rocky gorges of the ocean we may often trace a strange permanent impersonation of shipwreck. The defile of the Douvres was one of these gorges, and its effect was exciting to the imagination. The oxydes of the rock showed on the escarpment here and there in red places, like marks of clotted blood; it resembled the splashes on the walls of an abattoir. Associations of the charnel-house haunted the place. The rough marine stones, diversely tinted--here by the decomposition of metallic amalgams mingling with the rock, there by the mould of dampness, manifested in places by purple scales, hideous green blotches, and ruddy splashes, awakened ideas of murder and extermination. It was like the unwashed walls of a chamber which had been the scene of an assassination; or it might have been imagined that men had been crushed to death there, leaving traces of their fate. The peaked rocks produced an indescribable impression of accumulated agonies. Certain spots appeared to be still dripping with the carnage; here the wall was wet, and it looked impossible to touch it without leaving the fingers bloody. The blight of massacre seemed everywhere. At the base of the double parallel escarpment, scattered along the water's edge, or just below the waves, or in the worn hollows of the rocks, were monstrous rounded masses of shingle, some scarlet, others black or purple, which bore a strange resemblance to internal organs of the body; they might have been taken for human lungs, or heart, or liver, scattered and putrefying in that dismal place. Giants might have been disembowelled there. From top to bottom of the granite ran long red lines, which might have been compared to oozings from a funeral bier.

Such aspects are frequent in sea caverns.