"I can plainly see," Rob told them, "that while we're over here we are bound to keep our eyes wide open all the time because there are so many things that strike us as being queer just because we've been used to other ways. These people would stare at many of the things we think are common."
"What are you looking at now, Tubby?" asked Merritt, seeing that the boy, who had gained his name because after a fashion he resembled a tub of butter, was in the act of stretching his fat neck in order to see something that had attracted his attention.
"Why, I was wondering what made all the people crook their necks like that, and look up in the air. Is there a German Zeppelin heaving in sight? I don't seem to glimpse any big dirigible up there; do you, fellows?"
"What's that moving along away up near the clouds?" demanded Merritt.
"It must be an aëroplane," said Tubby. "I just heard somebody say my name close by; but he pointed up at that flier. What could he have meant, Rob?"
"I think I can tell you," replied the other scout. "German aëroplanes are called Taubes, and it sounded like your name. They say that is an aëroplane spy up there!"