Drifting, golden veils mingled with low, purple shadows.

Colors and shades changed in slow, wondrous transformation.
Suddenly Venters was startled by a low, rumbling roar--so low that it was like the roar in a sea-shell.
"Bess, did you hear anything ?" he whispered.
"No." "Listen!...

Maybe I only imagined--Ah!" Out of the east or north from remote distance, breathed an infinitely low, continuously long sound--deep, weird, detonating, thundering, deadening--dying..