“How do we get to the house?” asked Jim.

The agent turned in his chair and pointed down the dusty road. “Take that road as far as the crossroads and you’ll see Blackberry Lane. The house is down there; you can’t miss it.”

“Thanks,” said Don. “It was a good thing you forgot to mail this postal, sir. Up to the present time there hasn’t been a single clue, but this will perhaps mean much.”

“Say, listen bub,” called the stationmaster, hesitatingly. “If—if—well, in case——”

“I understand what you mean,” said Don, looking closely at the bowed old man in a new light. “Yes, there is a large reward out for the finding of Colonel Morrell, and I promise you that if anything comes of this clue you shall surely profit by it. Now we’re going down the road and take a look at that house Dennings lived in. My name is Mercer, and this is my brother. If you should hear that Colonel Morrell has been found from any clue you may have furnished you can write to us at Woodcrest and we’ll gladly see to it that you are fairly rewarded. Thanks for your information and the card. So long.”

Jim and Don left the station platform and the old man looked after them in some doubt.

“I wonder if I was a fool to give that card to those boys?” he pondered. “They look honest, but you can’t be too sure of anybody these days. I hope they find their colonel.”

He returned to alternately dreaming and shaking his head.

13. Vench Is Astonished

Jim and Don hurried down the road in the direction which the old man had indicated. They knew that haste was necessary for the sun was sinking rapidly and they were a long way from home.