As I say, it took time, and meanwhile five o’clock came and went, and the crowd thinned out. Going on five-thirty the remaining groups seemed to get the idea all at once that time was up and made for the entrance to the stairs. I was in the moderate room when it happened, and the first thing I knew I was alone there, except for a guy at the north bench, studying a row of dowianas. He didn’t interest me, as I had already canvassed him and crossed him off as the wrong type for a strangler, but as I glanced his way he suddenly bent forward to pick up a pot with a flowering plant, and as he did so I felt my back stiffening. The stiffening was a reflex, but I knew what had caused it: the way his fingers closed around the pot, especially the thumbs. No matter how careful you are of other people’s property, you don’t pick up a five-inch pot as if you were going to squeeze the life out of it.

I made my way around to him. When I got there he was holding the pot so that the flowers were only a few inches from his eyes.

“Nice flower,” I said brightly.

He nodded. “What color do you call the sepals?”

“Nankeen yellow.”

He leaned to put the pot back, still choking it. I swiveled my head. The only people in sight, beyond the glass partition between us and the cool room, were Nero Wolfe and a small group of guests, among whom were the Orwin trio and Bill McNab, the garden editor of the Gazette. As I turned my head back to my man he straightened up, pivoted on his heel, and marched off without a word. Whatever else he might or might not have been guilty of, he certainly had bad manners.

I followed him, on into the warm room and through, out to the landing, and down the three flights of stairs. Along the main hall I was courteous enough not to step on his heel, but a lengthened stride would have reached it. The hall was next to empty. A woman, ready for the street in a caracul coat, was standing there, and Saul Panzer was posted near the front door with nothing to do. I followed my man on into the front room, the cloakroom, where Fritz Brenner was helping a guest on with his coat. Of course the racks were practically bare, and with one glance my man saw his property and went to get it. His coat was a brown tweed that had been through a lot more than one winter. I stepped forward to help, but he ignored me without even bothering to shake his head. I was beginning to feel hurt. When he emerged to the hall I was beside him, and as he moved to the front door I spoke.

“Excuse me, but we’re checking guests out as well as in. Your name, please?”

“Ridiculous,” he said curtly, and reached for the knob, pulled the door open, and crossed the sill. Saul, knowing I must have had a reason for wanting to check him out, was at my elbow, and we stood watching his back as he descended the seven steps of the stoop.

“Tail?” Saul muttered at me.