A young monk was on his way to the city, carrying an important letter that he had to deliver personally to the intended recipient. He arrived at the city's outskirts, where he had to cross a bridge if he wished to enter. The bridge was guarded by a Samurai, an expert in the art of sword-fighting, who, to prove his strength and invincibility, had vowed to challenge in a duel the fust one hundred men who tried to cross the bridge. He had already killed ninety-nine…