Apparently its tenants came and went as they willed, untroubled by and contemptuous of governmental surveillance.
A handsome limousine car pulled up at its carriage block as Lanyard drove by, one time, and a pretty woman, exquisitely gowned, alighted and was welcomed by hospitable front doors that opened before she could ring: a woman Lanyard knew as one of the most daring, diabolically clever, and unscrupulous creatures of the Wilhelmstrasse, one whose life would not have been worth an hour's purchase had she ventured to show herself in Paris, London, or Petrograd at any time since the outbreak of the war.
He drove on, deep in amaze.
Indications were not wanting, on the other hand, that enemy spies maintained close watch upon the movements of those who frequented the house on West End Avenue. A German agent whom Lanyard knew by sight was strolling by as his taxi rounded its corner and swung on down toward Riverside Drive.
This more modest residence possessed a brick-walled garden at the back, on the Ninety-fifth Street side. And if the top of the wall was crusted with broken glass in a fashion truly British, it had a door, and the door a lock. And Lanyard made a note thereon.
And when he went home to dress for dinner, he opened up the false bottom of one of his trunks and selected from a store of cloth-wrapped bundles therein one which contained a small bunch of innocent-looking keys whose true raison d'être was anything in the world but guileless.
Later he did himself very well at Delmonico's, enjoying for the first time in many years a well-balanced dinner faultlessly cooked and served amid quiet surroundings that carried memory back half a decade to the Paris that was, the Paris that nevermore will be….
At nine precisely he paid off a taxicab at the corner of Ninety-fifth
Street.
While waiting on the doorstep of the corner house, he raked the street right and left with searching glances, and was somewhat reassured. Apparently he called at an hour when the Boche pickets were off duty; at the moment there was no pedestrian visible within a block's distance on either hand, nobody that he could see skulked in the areas of the old-fashioned brownstone houses across the way.
The neighbourhood was, indeed, quiet even for an upper West Side residential quarter. A block over to the east Broadway was strident in the flood of its nocturnal traffic; a like distance to the west Riverside Drive hummed with pleasure cars taking advantage of the first bland night of that belated spring. But here, now that the taxi had wheeled away, there was never a car in sight, nor even a strolling brace of sidewalk lovers.