He gazed at it until he was sure, then dashed back to the other boys.

“I’ve found a clue!” he cried out. “Come on, everybody!”

CHAPTER VI

The Robbery

JOE HARDY quickly led the way into the swampy area as the other boys trooped along, everyone talking at once. When they reached the spot, Chet examined the tire and exclaimed:

“There’s no mistake about it! This is one of the tires! When the thief put on the new one, he threw this away.”

“Perhaps the Queen is still around,” suggested Frank quickly. “The thief may have picked this road as a good place to hide your jalopy until he could make a getaway.”

“It would be an ideal place,” Chet agreed. “People coming to Willow Grove have to park at the gate, so nobody would come in here. But this old road comes in from the main highway. Let’s take a look, fellows.”

A scrutinizing search was begun along the abandoned road in the direction of the highway. A moment later Frank and Chet, in the lead, cried out simultaneously.

“Here’s a bypath! And here are tire marks!” Frank exclaimed. To one side was a narrow roadway, almost overgrown with weeds and low bushes. It led from the abandoned road into the depths of the woods.