I felt uncomfortably that she was drawing a comparison unfavorable to me between Tardif and myself—the gentleman, who could not conquer or conceal his desire to fathom a mystery, and the fisherman, who acted as if there were no mystery at all. Yet Olivia appeared more grieved than offended; and when she knew how I loved her she would admit that my curiosity was natural. She should know, too, that I was willing to take her as she was, with all the secrets of her former life kept from me. Some day I would make her own I was as generous as Tardif.

Just then my ear caught for the first time a low boom-boom, which had probably been sounding through the caves for some minutes.

"Good Heavens!" I ejaculated.

Yet a moment's thought convinced me that, though there might be a little risk, there was no paralyzing danger. I had forgotten the narrowness of the gully through which alone we could gain the cliffs. From the open span of beach where we were now standing, there was no chance of leaving the caves except as we had come to them, by a boat; for on each side a crag ran like a spur into the water. The comparatively open space permitted the tide to lap in quietly, and steal imperceptibly higher upon its pebbles. But the low boom I heard was the sea rushing in through the throat of the narrow outlet through which lay our only means of escape. There was not a moment to lose. Without a word, I snatched up Olivia in my arms, and ran back into the caves, making as rapidly as I could for the long, straight passage.

Neither did Olivia speak a word or utter a cry. We found ourselves in a low tunnel, where the water was beginning to flow in pretty strongly. I set her down for an instant, and tore off my coat and waistcoat. Then I caught her up again, and strode along over the slippery, slimy masses of rock which lay under my feet, covered with seaweed.

"Olivia," I said, "I must have my right hand free to steady myself with. Put both your arms round my neck, and cling to me so. Don't touch my arms or shoulders."

Yet the clinging of her arms about my neck, and her cheek close to mine, almost unnerved me. I held her fast with my left arm, and steadied myself with my right. We gained in a minute or two the mouth of the tunnel. The drift was pouring into it with a force almost too great for me, burdened as I was. But there was the pause of the tide, when the waves rushed out again in white floods, leaving the water comparatively shallow. There were still six or eight yards to traverse before we could reach an archway in the cliffs, which would land us in safety in the outer caves. Across this small space the tide came in strongly, beating against the foot of the rocks, and rebounding with great force. There was some peril; but we had no alternative. I lifted Olivia a little higher against my shoulder, for her long serge dress wrapped dangerously around us both; and then, waiting for the pause in the throbbing of the tide, I dashed hastily across.

One swirl of the water coiled about us, washing up nearly to my throat, and giving me almost a choking sensation of dread; but before a second could swoop down upon us I had staggered half-blinded to the arch, and put down Olivia in the small, secure cave within it. She had not spoken once. She did not seem able to speak now. Her large, terrified eyes looked up at me dumbly, and her face was white to the lips. I clasped her in my arms once more, and kissed her forehead and lips again and again in a paroxysm of passionate love and gladness.

"Thank God!" I cried. "How I love you, Olivia!"

I had told her only a few minutes before that the brain is ineffaceably stamped with the impress of every event in our lives. But how much more deeply do some events burn themselves there than others' I see it all now—more clearly, it seems to me, than my eyes saw it then. There is the huge, high entrance to the outer caves where we are standing, with a massive lintel of rocks overhead, all black but for a few purple and gray tints scattered across the blackness. Behind us the sea is glistening, and prismatic colors play upon the cliffs. Shadows fall from rocks we cannot see. Olivia stands before me, pale and terrified, the water running from her heavy dress, which clings about her slender figure. She shrinks away from me a pace or two.