The Blood Red Sun
The caravan camped, during the middle part of the day, and then started again about the middle of the afternoon. Before long the sun begun to look very curious. First it kind of turned to brass, and then to copper, and after that it begun to look like a blood- red ball, and the air got hot and close, and pretty soon all the sky in the west darkened up and looked thick and foggy, but fiery and dreadful -- like it looks through a piece of red glass, you know. We looked down and see a big confusion going on in the caravan, and a rushing every which way like they was scared; and then they all flopped down flat in the sand and laid there perfectly still.
Pretty soon we see something coming that stood up like an amazing wide wall, and reached from the Desert up into the sky and hid the sun, and it was coming like the nation, too. Then a little faint breeze struck us, and then it come harder, and grains of sand begun to sift against our faces and sting like fire, and Tom sung out:
"It's a sand-storm -- turn your backs to it!"
By Mark Twain
From Tom Sawyer Abroad (1903).