There they squatted in a hellish half-circle, their legs on the desert sand and their mitres piercing the luminous clouds; sinister, wolflike, and double-headed, with faces of fury and right hands raised, dully and malignly watching the rim of man's world and guarding with horror the reaches of a cold northern world that is not man's. From their hideous laps rose evil Shantaks of elephantine bulk, but these all fled with insane titters as the vanguard of night-gaunts was sighted in the misty sky. Northward above those gargoyle mountains the army flew, and over leagues of dim desert where never a landmark rose. Less and less luminous grew the clouds, till at length Carter could see only blackness around him; but never did the winged steeds falter, bred as they were in earth's blackest crypts, and seeing not with any eyes, but with the whole dank surface of their slippery forms. On and on they flew, past winds of dubious scent and sounds of dubious import; ever in thickest darkness, and covering such prodigious spaces that Carter wondered whether or not they could still be within earth's dreamland.