It was Bruce Duncan.
Harry responded with a similar whistle. His friend followed the sound and crouched beside him in the shadow of the bush.
"Where is our man?" Harry whispered.
"I don't know," was the soft reply. "I stayed by the road until a few minutes ago. Then I was afraid he might have slipped by me."
"It's the meeting time now."
"Maybe the man didn't come."
"That's possible."
"My uncle's instructions specified that some of the men might not arrive."
Fifteen minutes went by. Harry Vincent became uneasy. Bruce Duncan detected the fact.
"I know what you're thinking, Harry," he whispered. "You're wondering if everything is all right up ahead.