Suddenly Po shot into the courtyard from the north vestibule whooping. Katsa, seeing him, broke into a run and they tore at each other through the wash. Just before the moment of impact, Po shifted to one side, crouched, scooped Katsa up, and, with admirable precision, propelled them both sideways into the pool. ... Katsa and Po were trying to drown each other and, judging from their hoots of laughter, enjoying it immensely.