Back and forth the argument went. The runner, however, was a worthy representative of his chief, for at last he succeeded in carrying both his point and his price.

"All right," we heard him say at last, "the chief is in the back room.
Wait until I see whether he is alone."

The runner rose and went around to the swinging door. From the other side of the transom we could, as we had expected, hear nothing. A moment later the runner returned.

"Go in and see him," he whispered.

The man rose and made his way through the swinging door into the back room.

None of us said a word, but Kennedy was literally on his toes with excitement. He was holding the little battery in his hand and after waiting a few moments pressed what looked like a push button.

He could not restrain his impatience longer, but had jumped up on the leather seat and for a moment looked at the black leather box, then through the half open transom, as best he could.

"Press it—press it!" he whispered to Carton, pointing at the push button, as he turned a little handle on the box, then quickly dropped down and resumed his seat.

"Craig—one of the waiters," I cried hurriedly.

The outside bar had been filling up as the evening advanced and the sight of a man standing on one of the seats had attracted the attention of a patron. A waiter had followed his curious gaze and saw Kennedy.