Both to my wife and to Rudolf himself the street had seemed empty of every living being when she watched and he set out. Yet everything had been seen, from his first arrival to the moment when she closed the window after him. At either end of my house there runs out a projection, formed by the bay windows of the principal drawing-room and of the dining room respectively. These projecting walls form shadows, and in the shade of one of them--of which I do not know, nor is it of moment--a man watched all that passed; had he been anywhere else, Rudolf must have seen him. If we had not been too engrossed in playing our own hands, it would doubtless have struck us as probable that Rupert would direct Rischenheim and Bauer to keep an eye on my house during his absence; for it was there that any of us who found our way to the city would naturally resort in the first instance. As a fact, he had not omitted this precaution. The night was so dark that the spy, who had seen the king but once and never Mr. Rassendyll, did not recognize who the visitor was, but he rightly conceived that he should serve his employer by tracking the steps of the tall man who made so mysterious an arrival and so surreptitious a departure from the suspected house. Accordingly, as Rudolf turned the corner and Helga closed the window, a short, thickset figure started cautiously out of the projecting shadow, and followed in Rudolf’s wake through the storm. The pair, tracker and tracked, met nobody, save here and there a police constable keeping a most unwilling beat. Even such were few, and for the most part more intent on sheltering in the lee of a friendly wall and thereby keeping a dry stitch or two on them than on taking note of passers-by. On the pair went. Now Rudolf turned into the Konigstrasse. As he did so, Bauer, who must have been nearly a hundred yards behind (for he could not start till the shutters were closed) quickened his pace and reduced the interval between them to about seventy yards. This he might well have thought a safe distance on a night so wild, when the rush of wind and the pelt of the rain joined to hide the sound of footsteps.