Let them relax their watchfulness but for an instant, he knew that his cunning mind and giant muscles
would find a way to escape--escape and revenge.
Billy grinned triumphantly, then, to his amazement, saw a muscle grow up under his finger.
"He's lean enough, but look at his muscles. Everybody down here seems to go in for physical culture."
And I observed, also, that his whole body had unconsciously drawn itself together, tense and alert; that muscles
were softly crawling and shaping about the hips, along the back, and across the shoulders; that the arms were slightly lifted, their muscles
contracting, the fingers crooking till the hands were like talons; and that even the eyes had changed expression and into them were coming watchfulness and measurement and a light none other than of battle.
The ape-man had a keen admiration for a well-muscled, well-proportioned body, whether lion, or antelope, or man, and it had ever been beyond him to understand how clothes could be considered more beautiful than a clear, firm, healthy skin, or coat and trousers more graceful than the gentle curves of rounded muscles playing beneath a flexible hide.
Toward midnight Tarzan commenced to feel the physical strain of his long hours of travel and to realize that even muscles such as his had their limitations.
The Virgin, who had tensed unconsciously till her muscles hurt her, relaxed.
His nerves carried messages more quickly than theirs; his mental processes, culminating in acts of will, were quicker than theirs; his muscles themselves, by some immediacy of chemistry, obeyed the messages of his will quicker than theirs.
Each hair was about the bigness of a large angleworm, and as the thing moved the muscles
of its scalp this awful head-covering seemed to writhe and wriggle and crawl about the fearsome face as though indeed each separate hair was endowed with independent life.
As though it had been but a brittle shell, to break at the least rough usage, the thin veneer of his civilization fell from him, and the ten burly villains found themselves penned in a small room with a wild and savage beast, against whose steel muscles
their puny strength was less than futile.
He saw only a naked man-thing, hairless and futile, pitting his puny fangs and soft muscles
against his own indomitable savagery, and he charged.
At last Clayton saw the immense muscles
of Tarzan's shoulders and biceps leap into corded knots beneath the silver moonlight.