“Do you mean to insult me?” said Greenleaf, drawing himself up. “I've a great mind to knock you over!”

“Mr. Greenleaf,” said Herbert, firmly, “either return my money, or as much as you have got left, or I will call a policeman.”

“Just what I shall do, myself, unless you stop this nonsense,” said Greenleaf, angrily; but not without a sensation of uneasiness, as it struck his mind that Herbert might really intend to do what he had said.

“Once more, will you give up that money?” said Herbert, firmly.

“Stand out of the way,” said Greenleaf, “if you know what is best for yourself!”

He was about to push by, thrusting Herbert roughly out of the way, when our hero turned, and his look summoned the policeman, who hastened to the spot.

“Give this boy his money,” he said, authoritatively. “I know all about your little game. It's up now. Unless you hand over your plunder, you must go with me.”

Greenleaf changed color, and was evidently alarmed.

“I've got nobody's money, except my own,” he said.

“Come along, then,” said the officer, taking him by the arm.