The assaults of the sea had continued. The obstinacy of the waves is always increased by an obstacle. The first frame began to show signs of breaking up. One breach, however small, in a breakwater, is always serious. It inevitably enlarges, and there is no means of supplying its place, for the sea would sweep away the workmen.
A flash which lighted up the rocks revealed to Gilliatt the nature of the mischief; the beams broken down, the ends of rope and fragments of chain swinging in the winds, and a rent in the centre of the apparatus. The second frame was intact.
Though the block of stone so powerfully overturned by Gilliatt in the defile behind the breakwater was the strongest possible barrier, it had a defect. It was too low. The surge could not destroy, but could sweep over it.
It was useless to think of building it higher. Nothing but masses of rock could avail upon a barrier of stone; but how could such masses be detached? or, if detached, how could they be moved, or raised, or piled, or fixed? Timbers may be added, but rocks cannot.
Gilliatt was not Enceladus.
The very little height of this rocky isthmus rendered him anxious.
The effects of this fault were not long in showing themselves. The assaults upon the breakwater were incessant; the heavy seas seemed not merely to rage, but to attack with determination to destroy it. A sort of trampling noise was heard upon the jolted framework.
Suddenly the end of a binding strake, detached from the dislocated frame, was swept away over the second barrier and across the transversal rock, falling in the defile, where the water seized and carried it into the sinuosities of the pass. Gilliatt lost sight of it. It seemed probable that it would do some injury to the sloop. Fortunately, the water in the interior of the rocks, shut in on all sides, felt little of the commotion without. The waves there were comparatively trifling, and the shock was not likely to be very severe. For the rest, he had little time to spare for reflection upon this mishap. Every variety of danger was arising at once; the tempest was concentrated upon the vulnerable point; destruction was imminent.
The darkness was profound for a moment: the lightnings paused—a sort of sinister connivance. The cloud and the sea became one: there was a dull peal.
This was followed by a terrible outburst. The frame which formed the front of the barriers was swept away. The fragments of beams were visible in the rolling waters. The sea was using the first breakwater as an engine for making a breach in the second.