"Hello! I wish I'd noticed that bird before," exclaimed Dunstan. "Quick, fellows—get to cover!"
He sprang toward a near-by clump of trees.
His companions immediately followed.
"Confound it! Who knows but what powerful field-glasses may not be leveled on the château at this very moment!" cried Don. "We must be doubly c-a-r-e-f-u-l."
"A bit of profound wisdom!" laughed Chase. He peered cautiously between the leaves and branches. "It's a good thing that machine is pretty far away."
"But it's not far enough away to suit me, however," murmured Dunstan.
Without exposing themselves in the slightest degree, the three keenly watched the machine. Although receiving the attention of the French gunners—for little puffs of white smoke were breaking all about it—the plane continued to approach.
"Lie low—don't budge!" cautioned the art student.
"Catch me trying it!" said Don. "Just to think that before very long I'll be floating around in the air myself!"
"And I certainly won't," declared Chase, emphatically.