As Hazel still went up, the south wind began to blow and the June sunset reddened up the sky to the zenith. Hazel, like nearly all wild animals, was unaccustomed to look up at the sky. What he thought of as the sky was the horizon, usually broken by trees and hedges. Now, with his head pointing upward, he found himself gazing at the ridge, as over the skyline came the silent, moving, red-tinged cumuli. Their movement was disturbing, unlike that of trees or grass or rabbits. These great masses moved steadily, noiselessly and always in the same direction. They were not of his world.
“O Frith,” thought Hazel, turning his head for a moment to the bright glow in the west, “are you sending us to live among the clouds? If you spoke truly to Fiver, help me to trust him.”
― Richard Adams, Watership Down
Image by A Beijeman from Pixabay