"Hard to tell. Ours was gray. This one looks brown."
"Could be dust," Angel offered. "Dirt road below, plenty dusty. But there are lumber mills up in this part of the province. Perhaps that is just one of their trucks. You had no lumber, did you?"
"No. Our truck had only two crates on it. Besides, Angel—I mean Nangolat—must be far beyond this point. He left last night early."
"How do you know?" Angel asked curiously.
"Yeah," Scotty echoed. "You sound sure."
"He got the scanner, didn't he? There was a risk that we might find out that it was gone. He wouldn't hang around the airport knowing that we might find out about the theft, would he?"
"Good point," Scotty agreed.
"I heard of this earth scanner," Angel said. "Dr. Okola told me. It takes pictures of what is inside the ground, no?"
"Not exactly pictures," Scotty said. "It shows a kind of wave pattern. You'll see how it works."
Rick snorted. "Optimist. What makes you so sure?"