There was a great fisherman from Puueo engaged with a large net at the heenehu [179] fishing grounds, who noticed the dirty water of the sea and was surprised at the fact. He thought that there was war in the mountains which was the cause of the dirt in the stream. Others contradicted: there was no war; the dirt in the water was the result of a cloudburst causing the muddy stream which flowed down to the sea. But in this the man would not agree with them; he held to the idea that the discoloration of the water was caused by the feet of men. He hurriedly pulled his net into his canoe and returned to the shore. He did not wait to dry his net, but seized a long spear, also some taro and a few nehu, and throwing a ki-leaf fishing coat over his back, immediately set out toward the mountain. Nau was the name of the man. Nau proceeded till he reached the uppermost retreat of Kaumana, where was a stretch of pili grass. Above this was where the army was encamped. There was a flat stone in the stream on which the man sat and ate of his taro and little fishes. The warriors of Umi-a-Liloa saw that Nau, the great fisherman of Puueo, had taro for food and little fish for his meat. In this place the people of Umi-a-Liloa were in great difficulty; the road was narrow, and the men of Umi had to come down the pili trail in single file. As they came to the narrowest part each man had to lower himself, feeling for a landing with his feet, while the man’s place in hiding was favorable to him, being curved inward, and when the person from the other side made their descent this man would only have to thrust out his long spear, sending him over the cliff to his death. This continued for some time and many men were killed by this one man because of the narrowness of the trail, and of its nearness to Kauamoa. Forty men were thus killed. Piimaiwaa, therefore, went to the top of the cliff and on looking down he saw only one man, hugging close to the bank. Then Piimaiwaa muttered to himself: “I’ll kill you;” whereupon he leaped down the cliff and caused his [Nau’s] death. When Nau was killed there was no one to warn the chiefs of Hilo, and when night came the fighting was being carried down to Hilo. Umi’s army were provided with torches, and Umi-a-Liloa knew the king’s house in Hilo as also that of the daughter of Kulukulua; these were surrounded by Umi’s men, the chiefs of Hilo killed, the daughter of Kulukulua preserved, and the famous royal ivory necklace of Nanikoki recovered. As the cause of the war was the much desired ivory necklace, at the end of the conflict Hilo and Hamakua became united, with Umi as king. CHAPTER X. UMI CONQUERS OTHER DISTRICTS.