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Bessie? But… he’s too cute. He couldn’t destroy the world.

Percy Jackson, The Titan's Curse

The Ophiotaurus (meaning Serpent Bull) was an ancient monster that could bring down the gods if it was slain and its entrails burnt. It was a half-cow, half-serpent creature. It was nicknamed Bessie by Percy Jackson, who initially assumed it was female. The Ophiotaurus is currently safe in an aquarium in Olympus built by Hephaestus.


In the ancient myth, it is said that the creature emerged from chaos with Gaea and Ouranos. It was slain by the Titans' ally during the first Titanomachy , but its entrails were retrieved by Zeus' eagle before they were burned.

Afterwards, the gods kept it in heavens in the combined constellation of Taurus and Cetus.

Percy Jackson and the Olympians

The Titan's Curse

The Ophiotaurus was the creature that Artemis attempted to kill before it could turn to the Titans' side and defeat the gods. Percy first meets him trapped in a net and, being unaware that the creature was actually a male, nicknames him Bessie. Thanks to the Hippocampi and Percy the monster was freed. The Ophiotaurus was the center of the General's plan to bring down the gods by having Thalia Grace call the beast to her, kill it, then sacrifice its entrails as a tribute. However it was Percy, not Thalia, that the Ophiotaurus follows around. This is due to Percy's rescue, and the monster's belief that Percy is its protector. Grover later takes it to Olympus, and Percy sacrifices the Nemean lion's pelt to ensure they arrive safely. Deciding to allow it to live after a heart filled testimony by Percy, Poseidon and Hephaestus made a sphere-shaped aquarium for it on Mount Olympus, after Zeus refuses to let Poseidon harbor him under the sea as a "bargaining chip."


Percy Jackson, the one who took care of the Ophiotaurus and named him Bessie.


The Last Olympian

Percy sees him in his aquarium during the Battle of Manhattan when he goes into the Hall of the Gods. He tries to remain out of Kronos' notice, and gets out of the conflict alive.

Species: Centaur | Cyclopes | Dragon | Drakon | Eidolons | Empousa | Fire-Breathing Horse | Giants | Gorgon | Harpy | Hyperborean Giant | Ichthyocentaur | Karpoi | Katobleps | Laistrygonian Giant | Lycanthrope | Merpeople | Nikai | Nymphs | Pegasus | Satyr | Skolopendra | Stymphalian Birds | Telekhine | Blemmyae
Friendly Monsters: Argus | Blackjack | Briares | Chiron | Don | Ella | Festus | Gleeson Hedge | Gray |Grover Underwood | Hippocampus | Mellie | Mrs. O'Leary | Ophiotaurus | Peleus | Scipio | Tyson | Tempest
Enemy Monsters: Agrius and Oreius | Arachne | Basilisk | Charybdis and Scylla | Chimera | Chrysaor | Clazmonian Sow | Colchis Bull | Echidna | Euryale | Geryon | Joe Bob | Kampê | | Nanette | Manticore | Medusa | Minotaur | Nemean Lion | Polyphemus | Sphinx | Stheno | Typhon | Scythian Dracanae
Neutral Monsters: Carnivorous Sheep | Cerberus | Erymanthian Boar | Gray Sisters | Gorgons | Furies | Flesh-Eating Horse | Gryphon | Siren

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