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You keep sending me out to do your dirty work. You pick fights for no good reason, and I'm tired of dying for you. You want to fight the kid, do it yourself.

–Eurytion to Geryon, in The Battle of the Labyrinth.

Eurytion is an immortal demigod, son of Ares and Erytheia.


Ares, Eurytion's father

Eurytion started as a herdsman for Geryon, but accepted immortality when his father Ares offered it. He instantly regretted it, because he was bound to serve Geryon for all eternity. When Hercules reached Triple G Ranch, no sooner had he landed than he was confronted by the two-headed dog, Orthrus. With one huge blow from his olive-wood club, Hercules killed the watchdog. Eurytion the herdsman came to assist Orthrus, but was dealt with the same way. After that he killed Geryon. Because Eurytion was immortal, he reformed himself and was free until Geryon also reformed, as Geryon was a monster.

At some point, Eurythion helped Hephaestus pull a practical joke on his father Ares. In gratitude, Hephaestus gave him a metal spider which would allow him to visit Hephaestus at anytime, although the device could only be used once.

Percy Jackson and the Olympians

The Battle of the Labyrinth

Geryon, his former master

Eurytion finds Percy, Annabeth, Grover, and Tyson coming out of the Labyrinth. He takes them to Geryon, and is kind to Annabeth.

It was Eurytion who suggested that Percy clean the stables in order to secure freedom for Nico, Annabeth, Tyson, and Grover, who would be sold to Kronos by Geryon if Percy didn't clean the stables by sundown. Percy cleaned the stables, but Geryon laughed and said it wasn't a binding contract and ordered Eurytion to kill them.

He refuses to kill the teenage demigods, and so Geryon proceeds to do it himself. Percy beats him, with the help of Hera, by shooting an arrow sideways through his three hearts, and then tells Eurytion how to switch the rule of command at the ranch, by getting the animals on his side. Eurytion likes that idea, and lets them all go, helping them get to Hephaestus by giving them a metal spider that led them straight through the Labyrinth to Hephaestus' forge.

Later on, when Percy returns to camp and talks with Clarisse, he noted how she sounded like Eurytion (her half-brother), " she'd been fighting for a thousand years and was getting tired of it."


Eurytion is a cowboy herdsman and an excellent fighter. He has a soft spot for Annabeth, and refuses to hurt her. He doesn't approve of Geryon, yet didn't do much to get rid of him.


Eurytion is large with stark white hair, a cowboy hat, and a braided white beard. Eurytion wears jeans, a "Don't Mess with Texas" t-shirt, and a denim jacket with the sleeves ripped off. He has a tattoo of crossed-swords on his right bicep. Percy describes him as a kind of "Father Time" gone redneck and totally jacked.


  • Eurytion has been trained in hand-to-hand combat.
  • He is very strong and swift.
  • He may have some small degree of powers that Ares himself possesses.

Due to his mother being a nymph of sunset, it is possible that he possesses powers aligned to her domain. In fact he may not be a demigod at all.


  • When Percy and his friends asks Eurytion about how he got the metal spider, Eurytion replied that a couple of years back he helped Hephaestus play a little practical joke on his father Ares, and Hephaestus gave him the spider in appreciation so that Eurytion can visit him whenever he wished (but only once). It is possible, though unconfirmed, that the practical joke was the same one Hephaestus tried to pull on Ares in The Lightning Thief, seeing as it involved mechanical spiders.
  • Since his mother is a Hesperide, one of his aunts is Zoë Nightshade, who coincidentally was also involved in Hercules’s Twelve Labors.
Percy Jackson and the Olympians
Core Series: The Lightning Thief | The Sea of Monsters | The Titan's Curse | The Battle of the Labyrinth | The Last Olympian
Main Characters: Percy Jackson | Grover Underwood | Annabeth Chase | Tyson | Clarisse La Rue | Thalia Grace | Nico di Angelo | Chiron | Luke Castellan | Rachel Elizabeth Dare
Secondary Characters: Sally Jackson | Travis Stoll | Connor Stoll | Mrs. O'Leary | Silena Beauregard | Charles Beckendorf | Paul Blofis | Blackjack | Zoë Nightshade | Bianca di Angelo | Juniper | Ethan Nakamura | Daedalus
Minor Characters: Gabe Ugliano | Tantalus | Frederick Chase | Michael Yew | May Castellan | Austin Lake | Kayla Knowles | Maria di Angelo | Will Solace
Olympian Gods: Zeus | Hera | Poseidon | Demeter | Ares | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus | Hades | Hestia
Minor Gods: Amphitrite | Ariadne | Hecate | Iris | Janus | Morpheus | Nemesis | Pan | Persephone | Triton
Titans: Kronos | Atlas | Calypso | Iapetus | Krios | Hyperion | Oceanus | Prometheus
Mythical Creatures: Minotaur | Centaur | Furies | Satyr | Cyclops | Manticore | Ophiotaurus | Nemean Lion | Empousa
Related Content: Rick Riordan | The Lightning Thief (film) | Sea of Monsters (film) | The Demigod Files | Demigods and Monsters | The Ultimate Guide | The Heroes of Olympus | The Trials of Apollo | Percy Jackson Demigod Collection | The Lightning Thief: Illustrated Edition | Disney+ Series