"This fellow and his companion had been hired to kidnap a young chap and they had deposited him in Hi Ling's back shop in an upstairs room. There was something the young man knew that the 'old man' wanted to learn so much, he had gathered from the Chinaman who kept the shop. In other words, Lee knew something of the murder and the criminal wanted to find out just how much, or else he wanted to keep Lee from giving evidence. It doesn't matter which. The main fact remains, that he is holding the boy a prisoner.

"Well, when he realized that through my efforts I was bound to learn where Lee was, since he did not trust the toughs, he gave orders that when he had paid the boy his customary visit at one o'clock, they were to get rid of Lee for him. One more murder wouldn't disturb his conscience very much, I guess. Our only chance lies in getting there ahead of the criminal."

"How do you know it's not a trap?" I asked.

"I've provided for that by my orders to Jenkins. If it's a trap the police will have to rescue us, that's all. I feel conscience-stricken, lugging you into what may turn out to be a fight for life," he added.

"You needn't. I wouldn't have missed it for anything," I returned. "But why don't you surround the place with the police right away?"

"Do you know where we are going?" he asked curiously.

"To Chinatown, I should judge," I answered.

"Exactly. They keep scouts on the watch at those places, which are respectable without and—hells within. The moment they saw the sight of a uniform Lee Darwin would disappear and no one would ever learn what had become of him. Days later an unrecognizable corpse would be dragged from the river."

I shuddered. What a horrible end for the boy if we should fail to reach him in time!

At this juncture the car stopped with a jerk at the corner of Mott and Hester streets, and we piled out.