On the fourteenth day of the prince's vigil, a shadow swept over the castle, blacker than any passing cloud. All the birds in the godswood took to the air in fright, and a hot wind whipped the fallen leaves across the yard. Vhagar had come at last, and on her back rode the one-eyed prince Aemond Targaryen, clad in night-black armor chased with gold.
He had not come alone. Alys Rivers flew with him, her long hair streaming black behind her, her belly swollen with child. Prince Aemond circled twice about the lowers of Harrenhal, then brought Vhagar down in the outer ward, with Caraxes a hundred yards away. The dragons glared balefully at each other, and Caraxes spread his wings and hissed, flames dancing across his teeth.
The prince helped his woman down from Vhagar's back, then turned to face his uncle. "Nuncle, I hear you have been seeking us."
"Only you," Daemon replied. "Who told you where to find me?"
"My lady," Aemond answered. "She saw you in a storm cloud, in a mountain pool at dusk, in the fire we lit to cook our suppers. She sees much and more, my Alys. You were a fool to come alone."
"Were I not alone, you would not have come," said Daemon.
"Yet you are, and here I am. You have lived too long, nuncle."
"On that much we agree," Daemon replied. Then the old prince bid Caraxes bend his neck, and climbed stiffly onto his back, whilst the young prince kissed his woman and vaulted lightly onto Vhagar, taking care to fasten the four short chains between belt and saddle. Daemon left his own chains dangling. Caraxes hissed again, filling the air with flame, and Vhagar answered with a roar. As one the two dragons leapt into the sky.
Prince Daemon took Caraxes up swiftly, lashing him with a steel-tipped whip until they disappeared into a bank of clouds. Vhagar, older and much the larger, was also slower, made ponderous by her very size, and ascended more gradually, in ever widening circles that took her and her rider out over the waters of the Gods Eye. The hour was late, the sun was close to setting, and the lake was calm, its surface glimmering like a sheet of beaten copper. Up and up she soared, searching for Caraxes as Alys Rivers watched from atop Kings pyre Tower in Harrenhal below.
The attack came sudden as a thunderbolt. Caraxes dove down upon Vhagar with a piercing shriek that was heard a dozen miles away, cloaked by the glare of the setting sun on Prince Aemond's blind side. The Blood Wyrm slammed into the older dragon with terrible force. Their roars echoed across the Gods Eye as the two grappled and tore at one another, dark against a blood red sky. So bright did their flames burn that fisherfolk below feared the clouds themselves had caught fire. Locked together, the dragons tumbled toward the lake. The Blood Wyrm's jaws closed about Vhagar's neck, her black teeth sinking deep into the flesh of the larger dragon. Even as Vhagar's claws raked her belly open and Vhagar's own teeth ripped away a wing, Caraxes bit deeper, worrying at the wound as the lake rushed up below them with terrible speed.
And it was then, the tales tell us, that Prince Daemon Targaryen swung a leg over his saddle and leapt from one dragon to the other. In his hand was Dark Sister, the sword of Queen Visenya. As Aemond One-Eye looked up in terror, fumbling with the chains that bound him to his saddle, Daemon ripped off his nephew's helm and drove the sword down into his blind eye, so hard the point came out the back of the young prince's throat. Half a heartbeat later, the dragons struck the lake, sending up a gout of water so high that it was said to have been as tall as Kingspyre Tower.
Neither man nor dragon could have survived such an impact, the fisherfolk who saw it said. Nor did they. Caraxes lived long enough to crawl back onto the land. Gutted, with one wing torn from his body and the waters of the lake smoking about him, the Blood Wyrm found the strength to drag himself onto the lakeshore, expiring beneath the walls of Harrenhal. Vhagar's carcass plunged to the lake floor, the hot blood from the gaping wound in her neck bringing the water to a boil over her last resting place. When she was found some years later, after the end of the Dance of the Dragons, Prince Aemond's armored bones remained chained to her saddle, with Dark Sister thrust hilt-deep through his eye socket.
That Prince Daemon died as well we cannot doubt. His remains were never found, but there are queer currents in that lake, and hungry fish as well. The singers tell us that the old prince survived the fall and afterward made his way back to the girl Nettles, to spend the remainder of his days at her side. Such stories make for charming songs, but poor history.