Personally, I had made no effort to follow in their steps. I will confess straight away that this was not due to any indifference on my part, for she occupied my thoughts in a curiously persistent and disturbing fashion. My duties, however, left me little time for talking to the passengers, and, apart from that, I had no wish to try and force my acquaintance upon a girl who so obviously desired to be left alone. At times I could not help wondering whether her attitude in the matter was not dictated rather by loyalty to her uncle's wishes than by any natural inclination for solitude; but still, that made no difference to the facts of the case, which were sufficiently obvious for any but the most thick-skinned individual. So far as I was concerned, this slight touch of mystery only added to her attractiveness. In spite of our never having spoken to each other, I found that with each day of the voyage my interest in her increased rather than lessened, a circumstance which I had been at some particular pains to keep entirely to myself. As a rule I have not the least objection to being chaffed, but for once in a way I rather shrank from the raillery which Ross would certainly have indulged in if he had had the remotest inkling of my real feelings. In the middle of these meditations of mine we came alongside the jetty, from which two or three nondescript longshoremen had been eyeing our arrival with apathetic interest. For its size, Leixoes seems to contain a remarkable number of leisured citizens, whose only source of income appears to be the scanty earnings of their hard-working wives. My two companions were anxious to have a look round the village before proceeding farther, so, leaving them to their own devices, I walked up the beach and boarded an electric tram which was just about to start for Oporto. Half an hour's run along the sandy road brought me to that straggling city, which, with its mediæval charm and shoddy, unfinished modern "improvements," gives one an illuminating picture of Portuguese history. I descended in the old quarter on the quay, where the tall, tumble-down houses, with their quaint open fronts, still stare out picturesquely over the broad waters of the Douro. A glass of excellent iced beer in a neighbouring café washed away most of the dust which had collected in my throat, and then, feeling remarkably at peace with the world, I strolled off up the hill in the blazing glare of an almost tropical sunshine. For perhaps an hour I wandered leisurely about the town, buying one or two things which I wanted--including Ross's pipe--and thoroughly enjoying the sensation of being once more on solid ground. Then, having nothing better to do, I turned my steps to the English Club, where, through the kindness of the members--a very genial and hospitable crowd--any officer of the Planet Line was always a welcome guest.