WTWHTAS
Chap 11, part 5

"I hear an engine!" he yelled. "I hear an engine! Hear it?"

We looked sadly at one another and said nothing. Then, in an instant, like jacks-in-the-box, we all were staring rigidly into the sky.

We ALL heard it; a deep toned roar, muted by distance. Rickenbacker and Cherry saw it at the same time; a plane silohouetted against a low cloud bank in the west and coming in our general direction.