I thrust my hand into his breast; felt the heart beating, with a curious suggestion of stubborn, unshakable strength, as though every vital force had concentrated there as in a beleaguered citadel. But Ventnor himself, the consciousness that was Ventnor was gone; had withdrawn into that subjective void in which he had said he floated--a lonely sentient atom, his one line of communication with us cut; severed from us as completely as though he were, as he had described it, outside space. And Drake and I looked at each other's eyes, neither daring to be first to break the silence of which the muffled sobbing of the girl seemed to be the sorrowful soul..