Arion (also Areion)

Region/Culture: Southern Europe (Greek)
Mythos: Greek Mythology
Primary Type/Nature: Monsters and Beasts (an immortal, divinely bred horse)
Mythical Attributes: Born of a god, Arion possessed supernatural swiftness, deathlessness, the ability to speak, and a prescient sense of the people around him.
Role in Mythos: He was the heaven-bred warhorse who carried Heracles into battle and later bore Adrastus alive out of the slaughter of the Seven against Thebes.
Relation to Humans: Arion served a succession of mortal masters but never truly belonged to any of them, obeying the rightful hand and turning dangerous under the wrong one. To the men who rode him he was the difference between death and escape, the swiftest thing on the field and the only reason a king lived to tell of a lost war.

The field below Thebes was a wreck of broken chariots and dead kings, and through it ran one dark horse with a man clinging to his neck. Six of the seven war-leaders who had marched on the city were already corpses in the dust. The seventh, Adrastus of Argos, kept his life only because the animal under him was faster than the spears thrown after it, faster than the rout closing in, faster than anything bred from ordinary stock. The horse was Arion, and he had been made for exactly this kind of morning.

His making was a darker story than his speed. When Demeter was crossing the world in search of her stolen daughter Persephone, Poseidon began to follow her, wanting her. To shake him off she turned herself into a mare and slipped in among the grazing herds of Oncius in the hills of Arcadia. Poseidon was not fooled for long. He took the shape of a stallion, found her among the mares, and forced himself on her. From that union Demeter bore two children, a daughter whose name was kept from anyone uninitiated into her mysteries, and a horse. The goddess came away from it so furious that the people of Thelpusa afterward worshipped her under the name Fury. Arion was the foal of that anger.

The poets could not agree on the rest of his parentage. The most widely told version makes him the son of Poseidon and Demeter, but Antimachus insisted that Earth herself, Gaia, sent the horse up out of the ground near the grove of Apollo. Another tradition gave him stranger blood still, the offspring of the west wind Zephyrus on a Harpy, which would explain a creature whose feet could race against the gusts of his own father. One late account even claimed Poseidon invented him on the spot during his contest with Athena over Athens. The stories pull in different directions, and no single one ever won out.

What they share is the speed. Homer calls him the swift horse of Adrastus, of the race of the gods, and uses him as the measure against which no other horse could compete. Statius gives the fullest picture: a horse Poseidon himself first broke to the bit on the wet sand of the shore, sparing the lash because there was no satisfying the animal’s hunger to be moving. He could be harnessed beside the swimming steeds of the sea and carry his sea-blue father across the Ionian and Libyan deeps, leaving the storm clouds amazed behind him, the east and south winds straining and falling back. On land he was no slower. The sound of him was the sound of weather arriving too fast.

He passed through famous hands. Oncius the Arcadian had him first, then Heracles asked for the horse when he went to war against Elis and rode him into that fight and against Cycnus, the son of Ares. Heracles gave him on to Adrastus, which is why Antimachus said Adrastus was only the third lord to tame him. Tamed is generous. The horse tolerated his riders.

His one great rescue is bound up with one great humiliation, and both happened on the road to the same war. On the way to Thebes the army held the first funeral games at Nemea, and Arion was entered in the chariot race. Adrastus let his son-in-law Polynices take the reins. The horse knew at once that the hand on the leather was not his master’s, and something in him recoiled from the doomed son of Oedipus. He raged against the stranger from the starting line, threatening the driver in his fury and searching the whole plain for the man who should have been there. Then Apollo, who had promised the victory elsewhere, raised a snake-wreathed phantom out of the underworld directly in the horse’s path. Arion saw it, reared with his mane standing straight up, and flung Polynices backward out of the car. The empty chariot crossed the line first. The prize went to another man, and the horse kept only his glory.

His powers all came from his blood and pointed in one direction. He was deathless and impossibly quick, quick enough to run over the sea, and he could speak when he chose to; Propertius records simply that Arion spoke. He sensed things a horse should not, the wrongness of a driver, the fate hanging on a man. His weaknesses were the same gifts turned inward. He could not be owned, only borrowed, and his loyalty was narrow and fierce and fixed on his proper master, so a stranger’s hand turned all that power into a hazard rather than a help. He could outrun death for the man on his back but never decide what came after the running. Six died. One did not. That was the most a horse, even this one, could do.

Frequently Asked Questions

Who were Arion’s parents?

By most accounts Arion was the son of Poseidon and Demeter, conceived after Poseidon pursued Demeter and mated with her while both had taken the form of horses. Other traditions name different parents: Antimachus said the earth goddess Gaia bore him, while Quintus Smyrnaeus made him the offspring of the west wind Zephyrus and a Harpy. The sources never settled on one version.

What was Arion famous for?

Arion was famous for saving Adrastus, king of Argos, during the war of the Seven against Thebes. When the expedition collapsed and the other six leaders were killed, Arion carried Adrastus off the battlefield alive through his sheer speed. He was regarded as the fastest horse in Greek myth, swift enough to outrun the winds and even run across the sea.

Could Arion talk?

Yes. The Roman poet Propertius states plainly that Arion spoke, and several accounts credit him with a prescient awareness beyond an ordinary animal. At the Nemean Games he sensed that a stranger rather than his master held the reins and reacted with fury, behavior the poets treated as a sign of his divine, knowing nature.

Who owned Arion?

Arion belonged to a succession of owners. The Arcadian Oncius had him first, then the hero Heracles, who rode him in his war against Elis and in his fight with Cycnus. Heracles later gave the horse to Adrastus, who took him on the campaign against Thebes, making Adrastus the third master to claim the animal.

What did Arion look like?

Ancient sources say very little about Arion’s appearance beyond his mane, which the early epics describe as black or dark and which Statius later painted a fiery red. Otherwise the writers focused entirely on his speed rather than his form, leaving his body largely undescribed. What survives is an impression of a dark-maned horse defined by motion rather than detail.