BEIJING - The journey ended, fittingly, with Michael Phelps not in the pool but above it, cheering on his teammates. The greatest Olympian of all time may indeed now hover over his sport, but he could not have achieved such heights without a little help from his friends. And Sunday morning, in the last race on the last day of the greatest swimming feat in the history of these Games, his friends brought it home and laid it on the velvet pillow. The final gold.