"You don't? You don't know who I am either?"

The man gave him a keen look of inspection, but he evidently did not know him. Langton leaned over and dropped his voice. "Did you ever know—?" I could not catch the name. But the thug's eyes popped and he turned white under his dirt.

"I didn't have nothin' 't all to do with it. I was in Canady," he faltered.

Langton's eyes suddenly snapped. "I know where you were. This gentleman's a friend of mine," he said. "He saved my life once, and if you ever touch him, I'll have you—" He made a gesture with his hand to his throat. "Understand? And not all the bosses in the city will save you. Understand?"

"I ain't goin' to touch him. I got nothin' against him."

"You'd better not have," said Langton, implacably. "Come here." He took him out into the doctor's front office and talked to him for some little time while I told the doctor of my adventure.

"Who is Langton when he is at home?" I asked him.

He chuckled. "He is the best man for you to have in this city if Coll McSheen is your enemy. He is a retainer of Mr. Leigh's."

Just then Langton and the thug came in.

"Say, I'm sorry I took a hand in that job," said the latter. "But that skunk that runned away, he put 't up, and he said 's another friend of his got him to do it."