Thus three years passed, and in all the wide reaches of the world there was no man so happy as Nathos and no woman so happy as Darthool; and after these there were none so happy as Ailne and Ardan, who were well content to live so that they might be near the beautiful wife of Nathos, their sister, Darthool, fairest of all women in the world. The King of Alba, whom they had feared, was now dead, and the king who reigned in his place was well disposed towards the sons of Usna and sought their alliance. So this was done, and the name and fame of the three brothers spread throughout the land; while from the wild west to the populous east the poets sang of the beauty of Darthool. In the summer months they abode at the high fort of Darthool, for so they named it, on the heights above the Black Loch, or Loch Ness as we now call it; and from the first frosts till the cuckoo’s song had ceased they lived at Dunuisneachan, their father’s ancient stronghold by the shores of Loch Etive. Thence often they wandered far afoot, or sailed southward and eastward among the sea-lochs and narrow kyles. They hunted in Glenorchy and fished under the mountain-shadows on Loch Awe; or followed the deer through the woods of Glenlaidhe. When it was pleasant to be upon the waters, they sailed down the long fjord of Loch Fyne, and rested awhile at the Haven of the Foray, and watched the coming and going of the rainbows on the rocky headlands which guard that place; then they would cross to the Cowal, and enter the narrow Kyles of Bute, where on the little isle we call the Burnt Island they built a vitrified fort. Thence they followed past the Hills of Ruel to Glendaruay (Glendaruel), and so to the head of Loch Striven and up Glenmassan, and thence down by the sweet inland waters of Loch Eck, and waterward again by the bay we now call the Holy Loch. Thence up the long, narrow fjord of Loch Long they sailed, till among the mountains they crossed the short pass to Loch Lomond, and perhaps met the soldiery of the King of Alba at the inland lakes, or came upon the great fort of Dumbarton on the Clyde; or they may have crossed the hill to the Gareloch, and so returned westward once more by the blue frith of Clyde, past the precipitous isle of Arran, and so up Loch Fyne again; or seaward by the Mull of Cantire, and thence northward past the isles to their own place, and could once more watch the salmon leaping through the Falls of Lora or chase the deer on the hills of Etive. But during all this time Concobar, the high king of the Ultonians, nursed his bitter thoughts. He had heard of the great fame and happiness of the sons of Usna, and more than ever he yearned after Darthool, his wrath at his loss being the greater because that all the old prophecies about the beautiful daughter of Felim were unfulfilled.