Amelia Reynolds Long, Omega (1949)
“ There was a moment or so of silence; then the voice, keyed even higher than before, spoke again. "I see humanity in its death-throes," it said. "Only a few scattered tribes remain to roam over the deserted continents. The cattle have begun to sicken and die; and it is unsafe to use them for food. Four thousand years ago, we took to the manufacture of artificial air, as did the Martians before us. But it is hardly worth while, for children are no longer born. We shall be the last of our race." "Have you received no recent word from Mars?" asked Mortimer. ”
