she remembered him carrying that red-brown liver on the point of his dagger , remembered him chained to the dungeon wall in his ragged white shift pleading for mercy , for himself and his father , remembered him floating on his back in the swimming pool , remembered him stalking along the tiled floor in his orange trunks , chlorinated water running over his shoulders and back picking up a small stone , he scratched on the grey slab next to his thigh it woz ere .