The monster cried out at the tower. The foghorn blew. The monster roared again. The foghorn blew. The monster opened its great toothed mouth, and the sound that came from it was the sound of the foghorn itself.

The Foghorn, first published in The Saturday Evening Post (1951) with the title "The Beast from 20,000 Fathoms". - The Golden Apples of the Sun (1953)