It wanted nearly twenty minutes yet of the turn of the tide. I suggested waiting through this interval on the beach, instead of on the wet and slippery surface of the rocks. Having reached the dry sand, I prepared to sit down; and, greatly to my surprise, Betteredge prepared to leave me.

`What are you going away for?' I asked.

`Look at the letter again, sir, and you will see.'

A glance at the letter reminded me that I was charged, when I made my discovery, to make it alone.

`It's hard enough for me to leave you, at such a time as this,' said Betteredge. `But she died a dreadful death, poor soul--and I feel a kind of call on me, Mr. Franklin, to humour that fancy of hers. Besides,' he added confidentially, `there's nothing in the letter against your letting out the secret afterwards. I'll hang about in the fir plantation, and wait till you pick me up. Don't be longer than you can help, sir. The detective fever isn't an easy disease to deal with, under these circumstances.'

With that parting caution, he left me.

The interval of expectation, short as it was when reckoned by the measure of time, assumed formidable proportions when reckoned by the measure of suspense. This was one of the occasions on which the invaluable habit of smoking becomes especially precious and consolatory. I lit a cigar, and sat down on the slope of the beach.

The sunlight poured its unclouded beauty on every object that I could see. The exquisite freshness of the air made the mere act of living and breathing a luxury. Even the lonely little bay welcomed the morning with a show of cheerfulness; and the bared wet surface of the quicksand itself, glittering with a golden brightness, hid the horror of its false brown face under a passing smile. It was the finest day I had seen since my return to England.

The turn of the tide came, before my cigar was finished. I saw the preliminary heaving of the Sand, and then the awful shiver that crept over its surface--as if some spirit of terror lived and moved and shuddered in the fathomless deeps beneath. I threw away my cigar, and went back again to the rocks.

My directions in the memorandum instructed me to feel along the line traced by the stick, beginning with the end which was nearest to the beacon.

I advanced, in this manner, more than half-way along the stick, without encountering anything but the edges of the rocks. An inch or two farther on, however, my patience was rewarded. In a narrow little fissure, just within reach of my forefinger, I felt the chain. Attempting, next, to follow it, by touch, in the direction of the quicksand, I found my progress stopped by a thick growth of seaweed--which had fastened itself into the fissure, no doubt, in the time that had elapsed since Rosanna Spearman had chosen her hiding-place.

It was equally impossible to pull up the seaweed, or to force my hand through it. After marking the spot indicated by the end of the stick which was placed nearest to the quicksand, I determined to pursue the search for the chain on a plan of my own. My idea was to `sound' immediately under the rocks, on the chance of recovering the lost trace of the chain at the point at which it entered the sand. I took up the stick, and knelt down on the brink of the South Spit.

In this position, my face was within a few feet of the surface of the quicksand. The sight of it so near me, still disturbed at intervals by its hideous shivering fit, shook my nerves for the moment. A horrible fancy that the dead woman might appear on the scene of her suicide, to assist my search--an unutterable dread of seeing her rise through the heaving surface of the sand, and point to the place--forced itself into my mind, and turned me cold in the warm sunlight. I own I closed my eyes at the moment when the point of the stick first entered the quicksand.