With a quick pull on the wire, Kennedy jerked the black leather box from its high perch and deftly caught it as it fell.

"Say—what are youse guys doin', huh?" demanded the waiter pugnaciously.

Carton and I had risen and stood between the man and Craig.

The sound of voices in high pitch was enough to attract a crowd ever ready to watch a scrap. Mindful of the famous "flying wedge" of waiters at Farrell's for the purpose of hustling objectionable and obstreperous customers with despatch to the sidewalk, I was prepared for anything.

The runner who was sitting alone in the next booth, leaned out and gazed around the corner into ours.

"Carton!" he shouted in a tone that could have been heard on the street.

The effect of the name of the District Attorney was magical. For the moment, the crowd fell back. Before the tough waiters or anyone else could make up their minds just what to do, Kennedy, who had tucked the box into his capacious side pocket, took each of us by the arm and we shoved our way through the crowd.

The head waiter followed us to the door, but offered no resistance. In fact no one seemed to know just what to do and it was all over so quickly that even Kahn himself had not time to get a glimpse of us through the swinging door.

A moment later we had piled into a taxicab at the curb and were speeding through the now deserted streets uptown to the laboratory.

Kennedy was jubilant. "I may have almost precipitated a riot," he chortled, "but I'm glad I stood up. I think it must have been at the psychological moment."