On the afternoon of the first, I went down to the post office and got hold of Lusk, the inspector in charge of the division at the time.
“I’ve got a line on a scratcher from up north,” I told Lusk, “who is supposed to be getting his mail at the window. Will you fix it up so I can get a spot on him?”
Post office inspectors are all tied up with rules and regulations that forbid their giving assistance to private detectives except on certain criminal matters. But a friendly inspector doesn’t have to put you through the third degree. You lie to him—so that he will have an alibi in case there’s a kickback—and whether he thinks you’re lying or not doesn’t matter.
So presently I was downstairs again, loitering within sight of the A to D window, with the clerk at the window instructed to give me the office when Ashcraft’s mail was called for. There was no mail for him there at the time. Mrs. Ashcraft’s letter would hardly get to the clerks that afternoon, but I was taking no chances. I stayed on the job until the windows closed at eight o’clock, and then went home.
At a few minutes after ten the next morning I got my action. One of the clerks gave me the signal. A small man in a blue suit and a soft gray hat was walking away from the window with an envelope in his hand. A man of perhaps forty years, though he looked older. His face was pasty, his feet dragged, and, although his clothes were fairly new, they needed brushing and pressing.
He came straight to the desk in front of which I stood fiddling with some papers. Out of the tail of my eye I saw that he had not opened the envelope in his hand—was not going to open it. He took a large envelope