"Hurry up! All aboard!" exclaimed Hynard, and, as Roy watched, he saw Tupper thrust Mr. De Royster's diamond into his own pocket.
"They're robbing him!" thought the boy from the ranch. "I must warn him!"
He started forward. Mortimer De Royster grabbed up his suit-case and started for the train. Then he became aware that Mr. Baker had not handed him back his watch, while the other man had his pin.
"My timepiece!" he exclaimed. "I'll show it to you when we get in the train. I assure you it's a very fine one. And my pin—I would not like to lose it! Give them back!"
Hardly had he spoken when Hynard thrust his hand down into the inside pocket of Mr. De Royster's coat. His object was to grab his pocketbook, the bulging outline of which he had seen.
"Look out!" cried Roy in a loud voice, springing from his hiding place. "Look out! They're swindlers! They've got your watch and pin, and they're trying to get your money!"
"Look out," cried Roy, "they are swindlers!"
"There's that boy!" exclaimed Hynard, as he drew out his hand.