On this first day itself, when, on my return to the hotel, I was able to visualise the memory which I had brought away with me, I realised the consummate adroitness with which the sleight of hand had been performed, and how I had talked for a moment or two with a person who, thanks to the skill of the conjurer, without actually embodying anything of that other person whom I had for so long been following as she paced beside the sea, had been effectively substituted for her. I might, for that matter, have guessed as much in advance, since the girl of the beach was a fabrication invented by myself. In spite of which, as I had, in my conversations with Elstir, identified her with this other girl, I felt myself in honour bound to fulfil to the real the promises of love made to the imagined Albertine. We betroth ourselves by proxy, and think ourselves obliged, in the sequel, to marry the person who has intervened.