spoorless

Updated: June 11, 2025

On the surface of the ground or through the swaying branches of the trees the spoor of man or beast was an open book to the ape-man, but even his acute senses were baffled by the spoorless trail of the airship. Of what good were eyes, or ears, or the sense of smell in following a thing whose path had lain through the shifting air thousands of feet above the tree tops?

Edgar Rice Burroughs - Tarzan the Untamed