"It's really none of our business, Merritt," he said. "First of all——"

"Of course not, but——"

"And, if they discovered us, you know what it would mean?" Rob continued gravely.

"I suppose they would fire on us," admitted Merritt.

"They certainly would, because they could only believe that we were enemies," continued the other, who, once he had started in to convince an impulsive comrade, believed in delivering sledge-hammer blows in succession, "and we're not aching to be filled with lead just yet."

"But," urged Merritt, "we might move along the road just a little bit farther; that would take us closer to the place. I'd like to be able to see that Taube machine fly over our heads again."

"Well, there's no objection to doing that, only we must keep mighty quiet. And, Tubby, mind your feet!" said Rob.

Tubby did not bother making any reply, for none seemed necessary. He knew well enough that, as a rule, he was inclined to be clumsy, and could stumble, if given even half a chance. But, on the open road, and with the starlight to help out, he could not believe there was any danger.

So he sniffed disdainfully, and braced himself to move as softly as a cat; for it is wonderful how light on their feet most fat people can be, when they try their best.

Of course they could not see a thing, but then, imagination often helps out, and by this means they could picture the daring air-pilot, having successfully landed, in consultation with the secret agent.