When seven days had passed, he said to Niam, "I would fain go a-hunting." Niam said, "So be it, dear love; to-morrow we shall take order for that." Oisín lay long awake that night, thinking of the sound of Finn's hunting-horn, and of the smell of green boughs when they kindled them to roast the deer-flesh in Fian ovens in the wildwood.
So next day Oisín and Niam fared forth on horseback, with their company of knights and maidens, and dogs leaping and barking with eagerness for the chase. Anon they came to the forest, and the hunters with the hounds made a wide circuit on this side and on that, till at last the loud clamour of the hounds told that a stag was on foot, and Oisín saw them streaming down an open glen, the stag with its great antlers laid back and flying like the wind. So he shouted the Fian hunting-cry and rode furiously on their track. All day long they chased the stag through the echoing forest, and the fairy steed bore him unfaltering over rough ground and smooth, till at last as darkness began to fall the quarry was pulled down, and Oisín cut its throat with his hunting-knife. Long it seemed to him since he had felt glad and weary as he felt now, and since the woodland air with its odours of pine and mint and wild garlic had tasted so sweet in his mouth; and truly it was longer than he knew. But when he bade make ready the wood-oven for their meal, and build a bothy of boughs for their repose, Niam led him seven steps apart and seven to the left hand, and yet seven back to the place where they had killed the deer, and lo, there rose before him a stately Dún with litten windows and smoke drifting above its roof. When they entered, there was a table spread for a great company, and cooks and serving-men busy about a wide hearth where roast and boiled meats of every sort were being prepared. Casks of Greek wine stood open around the walls, and cups of gold were on the board. So they all ate and drank their sufficiency, and all night Oisín and Niam slept on a bed softer than swans-down in a chamber no less fair than that which they had in the City of the Land of Youth.
Next day, at the first light of dawn, they were on foot; and soon again the forest rang to the baying of hounds and the music of the hunting-horn. Oisín's steed bore him all day, tireless and swift as before, and again the quarry fell at night's approach, and again a palace rose in the wilderness for their night's entertainment, and all things in it even more abundant and more sumptuous than before. And so for seven days they fared in that forest, and seven stags were slain. Then Oisín grew wearied of hunting, and as he plunged his sharp black hunting-knife into the throat of the last stag, he thought of the sword of magic temper that hung idle by his side in the City of Youth, or rested from its golden nail in his bed-chamber, and he said to Niam, "Has thy father never a foe to tame, never a wrong to avenge? Surely the peasant is no man whose hand forgets the plough, nor the warrior whose hand forgets the sword hilt." Niam looked on him strangely for a while and as if she did not understand his words, or sought some meaning in them which yet she feared to find. But at last she said, "If deeds of arms be thy desire, Oisín, thou shalt have thy sufficiency ere long." And so they rode home, and slept that night in the palace of the City of Youth.
At daybreak on the following morn Niam roused Oisín, and she buckled on him his golden-hilted sword and his corselet of blue steel inlaid with gold. Then he put on his head a steel and gold helmet with dragon crest, and slung on his back a shield of bronze wrought all over with cunning hammer-work of serpentine lines that swelled and sank upon the surface, and coiled in mazy knots, or flowed in long sweeping curves like waves of the sea when they gather might and volume for their leap upon the sounding shore. In the glimmering dawn, through the empty streets of the fair city, they rode forth alone and took their way through fields of corn and by apple orchards where red fruit hung down to their hands. But by noontide their way began to mount upwards among blue hills that they had marked from the city walls toward the west, and of man's husbandry they saw no more, but tall red-stemmed pine trees bordered the way on either side, and silence and loneliness increased. At length they reached a broad table-land deep in the heart of the mountains, where nothing grew but long coarse grass, drooping by pools of black and motionless water, and where great boulders, bleached white or stained with slimy lichens of livid red, lay scattered far and wide about the plain. Against the sky the mountain line now showed like a threat of bared and angry teeth, and as they rode towards it Oisín perceived a huge fortress lying in the throat of a wide glen or mountain pass. White as death was the stone of which it was built, save where it was streaked with black or green from the foulness of wet mosses that clung to its cornices and battlements, and none seemed stirring about the place nor did any banner blow from its towers.
Then said Niam, "This, O Oisín, is the Dún of the giant Fovor of the Mighty Blows. In it he keeps prisoner a princess of the Fairy Folk whom he would fain make his bride, but he may not do so, nor may she escape, until Fovor has met in battle a champion who will undertake her cause. Approach, then, to the gate, if thou art fain to undertake this adventure, and blow the horn which hangs thereby, and then look to thy weapons, for soon indeed will the battle be broken upon thee."
Then Oisín rode to the gate and thrice he blew on the great horn which hung by it, and the clangour of it groaned drearily back from the cliffs that overhung the glen. Not thus indeed sounded the Dord of Finn as its call blew lust of fighting and scorn of death into the hearts of the Fianna amid the stress of battle. At the third blast the rusty gates opened, grinding on their hinges, and Oisín rode into a wide courtyard where servitors of evil aspect took his horse and Niam's, and led them into the hall of Fovor. Dark it was and low, with mouldering arras on its walls, and foul and withered rushes on the floor, where dogs gnawed the bones thrown to them at the last meal, and spilt ale and hacked fragments of flesh littered the bare oaken table. And here rose languidly to greet them a maiden bound with seven chains, to whom Niam spoke lovingly, saying that her champion was come and that her long captivity should end. And the maiden looked upon Oisín, whose proud bearing and jewelled armour made the mean place seem meaner still, and a light of hope and of joy seemed to glimmer upon her brow. So she gave them refreshment as she could, and afterwards they betook them once more to the courtyard, where the place of battle was set.
Here, at the further side, stood a huge man clad in rusty armour, who when he saw Oisín rushed upon him, silent and furious, and swinging a great battleaxe in his hand. But doubt and langour weighed upon Oisín's heart, and it seemed to him as if he were in an evil dream, which he knew was but a dream, and would be less than nothing when the hour of awakening should come. Yet he raised his shield and gripped the fairy sword, striving to shout the Fian battle-cry as he closed with Fovor. But soon a heavy blow smote him to the ground, and his armour clanged harshly on the stones. Then a cloud seemed to pass from his spirit, and he leaped to his feet quicker than an arrow flies from the string, and thrusting fiercely at the giant his sword-point gashed the under side of Fovor's arm when it was raised to strike, and Oisín saw his enemy's blood. Then the fight raged hither and thither about the wide courtyard, with trampling of feet and clash of steel and ringing of armour and shouts of onset as the heroes closed; Oisín, agile as a wild stag, evading the sweep of the mighty axe and rushing in with flickering blade at every unguarded moment, his whole soul bent on one fierce thought, to drive his point into some gap at shoulder or neck in Fovor's coat of mail. At length, when both were weary and wounded men, with hacked and battered armour, Oisín's blade cut the thong of Fovor's headpiece and it fell clattering to the ground. Another blow laid the giant prostrate, and Oisín leaned, dizzy and panting, upon his sword, while Fovor's serving-men took off their master in a litter, and Niam came to aid her lord. Then Oisín stripped off his armour in the great hall, and Niam tended to his wounds, healing them with magic herbs and murmured incantations, and they saw that one of the seven rusty chains that had bound the princess hung loose from its iron staple in the wall.
All night long Oisín lay in deep and healing slumber, and next day he arose, whole and strong, and hot to renew the fray. And the giant was likewise healed and his might and fierceness returned to him. So they fought till they were breathless and weary, and then to it again, and again, till in the end Oisín drove his sword to the hilt in the giant's shoulder where it joins the collar bone, and he fell aswoon, and was borne away as before. And another chain of the seven fell from the girdle of the captive maiden.
Thus for seven days went on the combat, and Oisín had seven nights of healing and rest, with the tenderness and beauty of Niam about his couch; and on the seventh day the maiden was free, and her folk brought her away, rejoicing, with banners and with music that made a brightness for a while in that forlorn and evil place.
But Oisín's heart was high with pride and victory, and a longing uprose in his heart with a rush like a springtide for the days when some great deed had been done among the Fianna, and the victors were hailed and lauded by the home-folk in the Dún of Allen, men and women leaving their toil or their pleasure to crowd round the heroes, and to question again and again, and to learn each thing that had passed; and the bards noting all to weave it into a glorious tale for after days; and more than all the smile and the look of Finn as he learned how his children had borne themselves in the face of death. And so Oisín said to Niam, "Let me, for a short while, return to the land of Erinn, that I may see there my friends and kin and tell them of the glory and joy that are mine in the Land of Youth." But Niam wept and laid her white arms about his neck, entreating him to think no more of the sad world where all men live and move under a canopy of death, and where summer is slain by winter, and youth by old age, and where love itself, if it die not by falsehood and wrong, perishes many a time of too complete a joy. But Oisín said, "The world of men compared with thy world is like this dreary waste compared with the city of thy father; yet in that city, Niam, none is better or worse than another, and I hunger to tell my tale to ignorant and feeble folk that my words can move, as words of mine have done of old, to wonder and delight. Then I shall return to thee, Niam, and to thy fair and blissful land; and having brought over to mortal men a tale that never man has told before, I shall be happy and at peace for ever in the Land of Youth."