I saw how cleverly the whole affair had been arranged; how the man introduced to me as Humphreys had met us by appointment in the vestibule of the Empire, and how, knowing my interest in antiques, the bait had been so cleverly placed.

I had now no doubt that Ellice Winsloe was an adventurer, therefore my eager desire was to reveal to Scarcliff the astounding truth.

And yet this was actually the man who had the audacity to propose marriage to Sybil, and she had contemplated accepting him!

To old Lady Scarcliff the fellow had posed as a gentleman of means, and had so ingratiated himself with Jack that the pair had become inseparable. The situation was monstrous.

In sheer desperation I groped forward slowly and carefully, my face to the black, slimy wall, feeling it forward with my hands. If I stumbled the force of the torrent would, I knew, take me off my feet and I should most probably meet with an awful death. Cautiously I crept along, how far I cannot tell. Each moment seemed an hour, and each step a mile, until of a sudden the wall ended!

Only the black swiftly-flowing flood lay before me. I put out my hand in the darkness, but only grasped the air.

Next moment, however, I discovered that the sewer took a sudden turn, almost at right angles, and that I had come to the corner. Yes. The wall continued! So I groped on and on, my hands travelling over bricks worn smooth by the action of the cleansing flood.

I hoped to encounter one of those men whom I had often seen descend from the street in high boots and carrying a miner’s lamp, but I was, alas! alone. The very absence of the workmen told me the terrible truth. It was the time for the automatic flushing!

On I groped in frantic haste, the rats scuttling from my path, the darkness complete; the noise of the black waters deafening. I recollected that as we had driven from the Empire it had commenced to rain, and thus was the torrent accounted for.

Of a sudden, I discerned before me something. What it was I could not distinguish. I crept on, and saw that it was like a small patch of faint grey. Then, approaching nearer, I found that it was a single ray of faint daylight which, penetrating from far above, fell upon the black waters. It was day. I had been in that gruesome place all night.