Thone became aware of a shriller cadence in the moans of his companion. Looking back, he saw that Falmer had removed his sun-helmet, seemingly oblivious of the murderous heat, and was clawing at the crown of his head with frantic fingers. Convulsions shook his entire body, the dugout began to rock dangerously as he tossed to and fro in a paroxysm of manifest agony. His voice mounted to a high un-human shrieking.