"Don't you dare let this young man in here again, Ling. If you do, it'll wind you up."

With that the motor boat boy contrived to pilot his charge swiftly through the store. He was not safe until he had passed the last of these yellow men, and the young skipper knew it. Yet, at last, he had the stranger out on the sidewalk, one hand up to signal the driver of the cab.

The guide, keeping close to the motor boat boy, had managed to get out with him. But the little fellow was shaking as though seized with the ague.

"Get into the cab, and help me take the young man in," ordered Tom, and the guide was glad, indeed, to dive inside the carriage. In another moment they were driving away.

"Say, but you've got the nerve!" chattered the guide, his teeth knocking together.

"Maybe you'd have some nerve if you'd learn to leave hop alone," rejoined Halstead. "Hop" is the Chinatown name for opium.

Halstead sat on the rear seat, supporting the young banker beside him. In a little while the cab again halted in front of Yum Kee's restaurant.

"Here," said Halstead, producing a ten-dollar bill. "Take this. Skip as soon as you like."

"You oughter gimme more," whined the guide.