In order to prevent possible intrusion from the sea, the seaward end of the tunnel was closed by a heavy iron gate, and upon the inner side of this gate the Lieutenant was to wait until his fiancee should steal forth bringing with her the key which should give access to the beach.  It was all very foolish and romantic, no doubt, for they might have met just as conveniently in the conservatory of Clyffe House, where their privacy would have been equally respected, and where Miss Alix’s satin shoes and diaphanous draperies would have exposed her to no risk of a chill.  Lovers are like that, however, and had they not been so on this occasion, I should have had no story to tell.

Like the exemplary swain he was, Dick arrived early at the rendezvous,—­that is to say, early in respect to the time agreed upon, though, as a matter of fact, it was nearly eleven o’clock.  There he lit a cigarette, and approaching the heavy iron bars of the locked gate, looked forth upon the peaceful scene beyond.  It was a perfect night, the harvest moon riding through fleecy cloud aloft, whilst the breaking of the sea between the rocky points to right and left was soothing in its gentle iteration.  Dick had been on parade extremely early that morning, and, tell it not in Gath! his eyes involuntarily closed.  Starting awake again, he saw with surprise that, though Alix had not yet come forward, he was no longer alone.  No! the sacred beach had been invaded, and a female figure clad in light draperies was pacing slowly in the moonlight betwixt himself and the distant rocks.  Who on earth could she be, and how had she got there? were the questions he asked himself, his first sensation being one of annoyance at so unexpected and so ill-timed an intrusion.  But as the moments passed and the figure came more clearly into view, impatience gave way to curiosity, and curiosity to something like awe.

What he saw was the tall and slender form of a young girl whose hands were clasped in front of her, and whose eyes were fixed on the ground in a pensive, not to say sorrowful, attitude.  Clear as was the moonlight, at least in the intervals of the moon’s passage through the broken clouds, her features were not plainly visible; but her every movement was instinct with grace.  What could she be doing there?  Under other circumstances, possibly Dick might have felt inclined to pass the gate and himself step forth on to the sands.  But, besides that the gate was locked, he gradually became conscious of a singular delicacy or unwillingness to intrude upon the privacy of this solitary, inexplicable, and impressive figure.  He was content, therefore, to watch her noiseless progress, and, as he did so, even his untrained masculine eye seemed to note something unusual—­out of date, it might be—­in the fashion of her garments.  So perhaps might some old-world portrait have appeared, had it stept down from its frame against the wall.  This, however, stirred him little.  What he was not prepared for was the