Cuchulain, who knows every tree and every bush of the country, still hangs upon Mève's flank, and without showing himself during the day, he slays a hundred men with his sling[7] every night.
Mève, through an envoy, asks for a meeting with him, and is astonished to find him, as she thinks, a mere boy. She offers him great rewards in the hope of buying him off, but he will have none of her gold. The only conditions upon which he will cease his night-slaying is if Mève will promise to let him fight with some warrior every day at the ford, and will promise to keep her army in its camp while these single combats last, and this Mève consents to, since she says it is better to lose one warrior every day than one hundred every night.
A great number of single combats then take place, each of which is described at length. One curious incident is that of the war-goddess, whom he had previously offended, the Mór-rígu,[8] or "great queen," attacking him while fighting with the warrior Loich. She came against him, not in her own figure, but as a great black eel in the water, who wound itself around his legs, and as he stooped to disengage himself Loich wounded him severely in the breast. Again she came against him in the form of a great grey wolf-bitch, and as Cuchulain turned to drive her off he was again wounded. A third time she came against him as a heifer with fifty other heifers round her, but Cuchulain struck her and broke one of her eyes, just as Diomede in the Iliad wounds the goddess Cypris when she appears against him.[9] Cuchulain, thus embarrassed, only rids himself of Loich by having recourse to the mysterious feat of the Gae-Bolg, about which we shall hear more later on. His opponent, feeling himself mortally hurt, cries out—
"'By thy love of generosity I crave a boon.'
"'What boon is that?' said Cuchulain.
"'It is not to spare me I ask,' said Loich, 'but let me fall forwards to the east, and not backward to the west, that none of the men of Erin may say that I fell in panic or in flight before thee.'
"'I grant it,' said Cuchulain, 'for surely it is a warrior's request.'"
After this encounter Cuchulain grew terribly despondent, and urged his charioteer Laeg again to hasten the men of Ulster to his assistance, but their pains were still upon them, and he is left alone to bear the brunt of the attack as best he may. Mève also breaks her compact by sending six men against him, but them he overcomes, and in revenge begins again to slay at night.
Thereafter follows the episode known in Irish saga as the Great Breach of Moy Muirtheimhne. Cuchulain, driven to despair and enfeebled by wounds, fatigue, and watching, was in the act of ascending his chariot to advance alone against the men of the four provinces, moving to certain death, when the eye of his charioteer is arrested by the figure of a tall stranger moving through the camp of the enemy, saluting none as he moved, and by none saluted.
"That man," said Cuchulain, "must be one of my supernatural friends of the shee[10] folk, and they salute him not because he is not seen."
The stranger approaches, and, addressing Cuchulain, desires him to sleep for three days and three nights, and instantly Cuchulain fell asleep, for he had been from before the feast of Samhain till after Féil Bhrighde[11] without sleep, "unless it were that he might sleep a little while beside his spear, in the middle of the day, his head on his hand, and his hand on his spear, and his spear on his knee, but all the while slaughtering, slaying, preying on, and destroying, the four great provinces."
It was after this long sleep of Cuchulain's that, awaking fresh and strong, the Berserk rage fell upon him. He hurled himself against the men of Erin, he drove round their flank, he "gave his chariot the heavy turn, so that the iron wheels of the chariot sank into the earth, so that the track of the iron wheels was (in itself) a sufficient fortification, for like a fortification the stones and pillars and flags and sands of the earth rose back high on every side round the wheels." All that day, refreshed by his three days' sleep, he slaughtered the men of Erin.
Other single combats take place after this, in one of which the druid Cailitin and his twenty sons would have slain him had he not been rescued by his countryman Fiacha, one of those Ultonians who with Fergus had turned against their king and country when the children of Usnach were slain.