Yorimasa was a man of great courage and resource, and lost not a moment in getting ready. He strung his best bow most carefully and placed his quiver in two steel-headed arrows. He then put on his armour, and over his armour he donned a hunting-dress, and to look more courtly he put on a ceremonial cap instead of a helmet. He chose his favourite retainer, the bravest and strongest of all his soldiers, to accompany him. Yorimasa now set out as calmly and quietly as if he were simply going to his every-day duty and nothing more. As soon as his arrival was made known, he was summoned to the presence of the Ministers of the Right and the Left and told of all that was happening at Court—how every night at the hour of sunset a black cloud was seen to issue from the east, approach the Palace, and finally cover the roof of the Purple Hall of the North Star where the Emperor always slept. Then the Ministers told the knight of the strange noises that were heard on the roof, of the howlings and scratchings which lasted all night till the dawn broke. It behoved him, they said, to do his best to kill the monster, if such it was, for all the guards were now thoroughly frightened, and none of them dared attack it in hand-to-hand fight, and none had skill enough to hit it in the dark, though the Emperor's own body-guard of archers had tried again and again.
Yorimasa listened to the strange story gravely. He saw that the whole Palace was in a state of alarm and disturbance, but he did not lose heart. With the greatest self-possession he waited for the end of the day. As soon as the sun set, the night grew stormy; the wind blew a hurricane, the lightning flashed, and the thunder roared. Nothing daunted by the fury of the elements, the brave archer waited and waited. It must have been near midnight when Yorimasa saw a thick black cloud sweep down and settle on the roof of the Palace. He bade his retainer be ready with sword and torch at any moment and to follow him closely. The black cloud moved along the ridge of the grey-tiled roof till it stopped at the northeast corner, just over the Imperial sleeping-chamber.
Yorimasa cautiously followed the movements of the cloud, his man just behind him. Straining his eyes, Yorimasa saw, during a vivid flash of lightning, the form of a large animal. Keeping his eyes on the spot where he had seen the head, while the peals of thunder crashed like cannon above, in the darkness which followed he caught the glare first of one eye and then of the other as the creature moved along.
"This must be the monster who disturbs the Emperor's rest!" said Yorimasa to himself.
With these words he fitted an arrow to the bow, and aiming to the left of where he saw the left eye glare he pulled his bow as round as the full moon and let fly. Yorimasa felt that his arrow had touched flesh. At the same moment there was a frightful howl and a heavy thud, and the writhing in agony of some animal on the ground, which showed that Yorimasa had done his work well.
Now Yorimasa's retainer rushed upon the monster; in one hand he held a blazing torch, in the other a short sword with which he stabbed the creature nine times and quickly despatched him. Then they both raised their voices and called to the sentinels and the courtiers to come and look. A strange sight was in store for them. Never had any of them seen anything like the monster that lay before them. The dreadful beast was as large as a horse; it had the head of an ape, the body and claws of a tiger, the tail of a serpent, the wings of a bird, and the scales of a dragon. They had heard and read of such creatures in some of the old books, but had always thought that such stories were old women's fables, to be told and whispered by grey-haired dames round the hibachi (fire-brazier) to their wonder-struck grandchildren, but never to be entertained seriously by men of sense. For a few moments they were all struck dumb with astonishment; they gazed silently first at the strange and horrible beast before them, then at Yorimasa, the slayer of it. Exclamations of wonder burst from their lips. Then one and all turned to the brave archer and congratulated him on his wonderful feat, his courage and his marksmanship. It seemed as if they would never cease applauding him.
The animal was flayed and its skin was carried to the Emperor, who ordered it to be stored as a curiosity in the Imperial treasure-house. His Majesty was highly pleased. He sent for Yorimasa and bestowed on him a sword called Shishi-Wo, or the King of Lions. The time of the year was the beginning of the fifth month; the crescent moon hung like a silver bow in the twilight sky, and the cuckoo[2] was calling from the trees near by; so the Minister of the Left who handed the sword to Yorimasa improvised the first half of a stanza saying:
"O cuckoo of wonder, even your name
Climbs ever upward to the Heaven!"
Then Yorimasa, on his knees with uplifted hands and bowed head, received the sword, and as he did so he completed the short poem with these words:—
"Not through thine own: but through the merit of a moon-shaped bow!"