“Tyrrell will be here before long. He can post us if there is any break in our arrangements.”

The two men passed out of hearing. Andy made one or two efforts to loosen his bonds, found them unusually secure, and gave up the experiment. What his captors had said startled and disturbed him considerably.

“Mr. Parks doesn’t expect me to show up in time to make the race, and this man they talked about, Tyrrell, is going to take my place,” reflected Andy. “He is a friend of the people here, and that certainly means harm for Mr. Parks.”

Andy worried himself a good deal during the next hour, imagining all kinds of plots on the part of Duske and his friends to prevent the Racing Star from winning the prize.

Finally Andy heard voices in the large tent. His name was spoken, and he listened intently to catch what was said.

“If that’s so, and it’s really Andy Nelson,” sounded a new voice, “it’s funny, for up to this morning he was in jail at Princeville.”

“Then he’s escaped, or got free somehow,” answered Duske. “He’s that boy of Parks’ who was the winner in the dash for the pony prize.”

“If he is,” came the reply, “you want to hold him a close prisoner till the big race is over.”

CHAPTER XXI—A FRIEND IN NEED

The voices that Andy heard died away in the distance. In about ten minutes, however, they came back again within his range of hearing. The man he believed to be Tyrrell, who in some way had induced Mr. Parks to accept him as a substitute for himself in the aviation race, was speaking to his companion, who was Duske.