Now, night by night, the moon was sharpened above the craggy isle, and it became a heavy scythe and then a thin scimitar. And, after the interlunar dusk, it broadened from a frail saber to a sickle, and, digit by digit, swelled toward the gibbous orb and the plenilune. Yadar, supping with the sorcerers as it changed, was not unregardful of that burrow in the granite flag, from which the weasel-demon, Esrit, had slithered forth to suck the blood of the cannibal. But, beneath his extreme languor and lethargy, he hardly feared that verminous death which would dart upon him at the time of the moon’s fullness.

One day, toward sunset-time, as the month drew to its end, Vokal and Uldulla approached the prince where he stood waiting on a rock-walled beach while Dalili dived after pearls far out in the torrent waters. Speaking no word, they beckoned to him with furtive signs; and Yadar, vaguely curious as to their intent, suffered them to lead him from the beach and by perilous paths that wound from crag to crag above the curving sea-shore. Ere the fall of darkness, they came suddenly to a small landlocked harbor whose existence had been heretofore unsuspected by the nomad. In that placid bay, beneath the deep umbrage of the isle, there rode a galley with somber purple sails, resembling the ship that Yadar had discerned moving steadily toward Zothique against the full tide of the Black River.

Yadar was much bewondered, nor could he divine why they had brought him to the hidden harbor, nor the import of their gestures as they pointed out the strange vessel. Then, in a hushed and covert whisper, as if fearing to be overheard in that remote place, Vokal said to him:

“If thou wilt aid my brother and me in the execution of a certain plan which we have conceived, thou shalt have the use of yonder galley in quitting Naat. And with thee, if such be thy desire, thou shalt take the girl Dalili whom thou lovest, together with certain of the dead mariners for oarsmen. Favored by the powerful gales which our enchantments will evoke for thee, thou shalt sail against the Black River and return to Zothique…. But if thou helpest us not, then shall the weasel Esrit suck thy blood, till the last, least member of thy body has been emptied thereof; and Dalili shall remain forever as the bondslave of Vacharn, toiling for his avarice by day in the dark waters… and perchance serving his lust by night.”

At the promise of Vokal, Yadar felt something of hope and manhood revive within him, and it seemed that the baleful sorcery of Vacharn was lifted from his mind; and an indignation against Vacharn was awakened in him by Vokal’s hintings. And he said quickly: “I will aid thee in thy plan, whatever it may be, if such aid is within my power to give.”

Then, with many fearful glances about and behind him, Uldulla took up the furtive whispering.

“It is our thought that Vacharn has lived beyond the allotted term, and has imposed his authority upon us for an excessive length of years. We, his sons, grow old: and we deem it no more than rightful that we should inherit the stored treasures and the magical supremacy of our father ere age has wholly debarred us from their enjoyment. Therefore we seek thy help in the slaying of the necromancer.”

Though Yadar was somewhat surprised, it came to him after brief reflection that the killing of the necromancer should be held in all ways a righteous deed, and one to which he could lend himself without demeaning his valor or his manhood. So he said without demur: “I will aid thee.”

Then, seeming greatly emboldened by Yadar’s consent, Vokal spoke again in his turn, saying: “This thing must be accomplished ere tomorrow’s eve, which will bring a full-rounded moon from the Black River upon Naat, and will call the weasel-demon Esrit from his burrow. And tomorrow’s forenoon is the only time when we can take Vacharn unaware in his chamber. During those hours, as is his wont, he will peer entranced on a magic mirror that yields visions of the outer sea, and the ships sailing over the sea, and the lands lying beyond. And we must slay him before the mirror, striking swiftly and surely ere he awakens from his trance.”

At the hour set for the deed, Vokal and Uldulla came to Yadar where he stood awaiting them in the mansion’s outer hall. Each of the brothers bore in his right hand a long and coldly glittering scimitar; and Vokal also carried in his left a like weapon, which he offered to the prince, explaining that these scimitars had been tempered to a muttering of lethal runes, and inscribed afterward with unspeakable deathspells. Yadar, preferring his own sword, declined the wizard weapon; and, delaying no more, the three went hastily and with all possible stealth toward Vacharn’s chamber.

The house was empty at that hour, for the dead had all gone forth to their labors; nor was there any whisper or shadow of those invisible beings, whether sprites of the air or mere phantoms, that waited upon Vacharn and served him in sundry ways. In silence and, as they thought, wholly unperceived, the three came to the portals of the chamber, where entrance was barred only by a black arras wrought with the Signs of night in silver, and bordered all about with a repetition of the fives names of the archfiend Thasaidon in scarlet thread. The brothers paused before the arras, as if fearing to lift it; but Yadar, unhesitating, held it aside and passed into the chamber; and the twain followed him quickly as if for shame of their poltroonery.

Large and high vaulted was the room, and lit by a dim window looking forth between unpruned cypresses toward the black sea. No flames arose from the myriad lamps to assist that baffled daylight; and shadows brimmed the place like a spectral fluid, through which the vessels of wizardry used by Vacharn, the great censers and alembics and braziers, seemed to quiver and move like animate things. A little past the room’s center, his back to the doorway, Vacharn sat on an ebon trivet before the mirror of clairvoyance, which was wrought from electrum in the form of a huge delta, and was held obliquely aloft by a serpentining copper arm. The mirror flamed brightly in the shadow, as if lit by some splendor of unknown source; and the intruders were dazzled by glimpsings of its radiance as they went forward.

It seemed that Vacharn had indeed been overcome by the wonted trance, for he peered rigidly into the mirror, immobile as a seated mummy. The brothers held back, while Yadar, thinking them close behind him, stole toward the necromancer with lifted blade. As he drew nearer, he perceived that Vacharn held a great scimitar across his knees; and deeming that the sorcerer was perhaps forewarned, Yadar ran quickly up behind him and aimed a powerful stroke at his neck, meaning to hew off the head with that single blow. But, even while he aimed, his eyes were wholly blinded by the strange brightness of the mirror, as though a sun had blazed into them from its depth across the shoulder of Vacharn; and the blade swerved and bit slantingly into the collar-bone, so that the necromancer, though sorely wounded, was saved from decapitation.

Now it seemed likely that Vacharn had foreknown the attempt to slay him, and had thought to do battle with his assailers when they came, and kill the three without injury to himself, by virtue of his superiority in swordsmanship and in magic. But, sitting at the mirror in pretended trance, he had no doubt been overpowered against his will by the weird brilliancy; and was aroused from that mantic slumber only by the lethal biting of Yadar’s sword through flesh and bone.

Fierce and swift as a wounded tiger, he leapt from the trivet, swinging his scimitar aloft as he turned upon Yadar. The prince, still blinded, could neither strike again nor avoid the stroke of Vacharn; and the scimitar clove deeply into his right shoulder, and he fell mortally wounded and lay with his head upheld a little against the base of the snakish copper arm that supported the mirror.