CHAPTER II
THE AIRPLANE GUARD
Shuddering, terrified, Chick clung to Garry’s steady arm as he gazed upward.
One of the clustered clouds seemed to be picked out from the others by a phosphorescent glow: it was luminous but not fiery; whitish in tint rather than ruddy.
Out of it came a silent, gliding, dark shape—an airplane!
For a brief interval Garry felt his own blood chilling. That spectral shape was very much like the mental pictures he had visualized after he had listened to the story of the pilot who had cracked up because of a similar apparition.
Then the real explanation flashed into his mind.
He gave a relieved laugh.
“Hooray!” he cried in the still, dark cockpit seat, “the ghost of the skies is explained.”
“So it is!” agreed Scott, the pilot.
“Don’t—” began Chick; but his own words died as he saw that they were not facing any supernatural appearance.