Young Mrs. Propbridge figured that her name was becoming tolerably well known along the Gold Coast of the North Atlantic Seaboard. It was too. For example, there was at least one person entirely unknown to her who kept a close tally of her comings and her goings, of her social activities, of her mode of daily life. This person was Vincent Marr. Thanks to the freedom with which a certain type of journal discusses the private and the public affairs of those men and women most commonly mentioned in its columns, he presently had in his mind a very clear picture of this lady, and he followed her movements, as reflected in print, with care and fidelity; it was as though he had a deep personal interest in her. For a matter of fact, he did; he had a very personal interest in her. He had been doing this for months; in his trade, as in many others, patience was not only a virtue but a necessity. For example, he knew that her determined and persistent but somewhat crudely engineered campaigning to establish herself in what New York calls--with a big S--Society was the subject in some quarters of a somewhat thinly veiled derision; he knew that her husband was rather an elemental, not to say a primitive creature, but genuine and aboveboard and generous, as elemental beings are likely to be. Marr figured him to be of the jealous type. He hoped he was; it might simplify matters tremendously. On a certain summer morning a paragraph appeared in at least three daily papers to the effect that Mr. and Mrs. Justus Propbridge had gone down to Gulf Stream City, on the Maryland coast; they would be at the Churchill-Fontenay there for a week or ten days. It was at his breakfast that Marr read this information. At noon, having in the meantime done a considerable amount of telephoning, he was on his way to the seaside too. Mentally he was shaking hands with himself in a warmly congratulatory way. Gulf Stream City was a place seemingly designed, both by Nature and by man, for the serving of his purposes. Residing there were persons of his own kidney and persuasion, on whom he might count for at least one detail of invaluable cooperation. For a certain act of his piece, a short but highly important one, he also must have a borrowed stage setting and a supernumerary actor or so. Immediately upon his arrival he sought out certain dependable individuals and put them through a rough rehearsal. This he did before he claimed the room he had engaged by wire at the Hotel Crofter. The Hotel Crofter snuggled its lesser bulk under an imposing flank of the supposedly exclusive and admittedly expensive Churchill-Fontenay. From its verandas one might command a view of the main entrance of the greater hotel.