It was a very wild shot indeed; for the moment I pulled back the latch, the door was pushed wide and von Erstein came swaggering in.

CHAPTER XVI

A POISON CHARGE

"Where's the fellow you called Rudolff?" he demanded truculently.

My first idea was to shove him out, but it struck me that an interview between the two men might have interesting results, so I went back to the sitting-room. "Your friend's still here," I said.

Rudolff wilted at the sight of his genial employer, and as they were now two to one, both scoundrels, and capable of any violence, it was best to take precautions. Thus while von Erstein was challenging the other man to say he knew him, I crossed to a small table drawer and put my revolver in my pocket, keeping my hand on it in case of necessity.

The instant Rudolff knew that I had tricked him out of the confession he was nearly as mad as von Erstein. He couldn't well have been madder.

"A bit late, eh, beloved?" I jeered. "Had to wait for a taxi? They are rather scarce just now."

"What has this man written?"