The Sea of Monsters
Season 2 of Disney+'s Percy Jackson adapts The Sea of Monsters, Rick Riordan's second book. The story follows Percy and his friends as they sail into the Sea of Monsters (the Bermuda Triangle) to find the Golden Fleece and save Camp Half-Blood.
The Golden Fleece quest draws directly from the myth of Jason and the Argonauts — but with significant creative changes.
Polyphemus the Cyclops
In the show: Polyphemus guards the Golden Fleece on an island. In mythology: Polyphemus is the Cyclops from Homer's Odyssey who trapped Odysseus and his men in a cave, eating several of them before Odysseus blinded him with a burning stake.
The show keeps the core character but changes his role — in the original myths, Polyphemus has nothing to do with the Golden Fleece.
Tyson — Percy's Cyclops Brother
Riordan invented Tyson as Percy's half-brother, a friendly Cyclops. In actual mythology, Cyclopes were either the original three who forged Zeus's thunderbolt, or the savage race that Polyphemus belonged to. A gentle, friendly Cyclops is pure Riordan invention — but a brilliant one.
Circe's Island
The show features Circe, the enchantress who turned Odysseus's men into pigs. This is drawn directly from the Odyssey, though the show adds modern twists to her character that Homer never imagined.
The Golden Fleece
In mythology: The Golden Fleece was the skin of a magical golden ram, kept in Colchis (modern Georgia) and guarded by a dragon. Jason retrieved it with Medea's help. In Percy Jackson: The Fleece has healing powers and is relocated to an island in the modern world.
What Riordan Gets Right
The family relationships, the monster types, the divine personalities — Riordan's foundation is always solid Greek mythology. He adapts and modernizes, but he rarely invents from nothing. Each character and creature has roots in the original myths, making the series an excellent gateway to classical mythology.
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The Odyssey hiding inside The Sea of Monsters
Riordan built his second book as a deliberate echo of Homer. Percy's route to the Fleece runs past the same hazards Odysseus faced in Books 9 to 12 of the Odyssey, often in the same order of danger if not of sailing.
Scylla and Charybdis. In Homer, Circe warns Odysseus that he must pass between a whirlpool that swallows the sea three times a day and a six-headed monster in a cliff cave who snatches a sailor with each mouth. Her advice is to hug Scylla's side and accept losing six men rather than the whole ship. Riordan keeps the terrible choice; see Scylla and Charybdis.
The Sirens. Annabeth asks to hear the Sirens while tied to the mast, exactly as Odysseus does after plugging his crew's ears with beeswax. Homer never describes what the Sirens look like; he only says they sit in a meadow surrounded by the bones of men. The bird-woman form comes from vase painting, and the fish-tailed mermaid is medieval. Their song in Homer promises knowledge of everything that happens on earth, which is why Riordan has them show Annabeth her deepest wish rather than simply singing beautifully (see the Sirens).
Circe. Homer's Circe, daughter of the sun god Helios, turns Odysseus' scouts into pigs with drugged food and a wand. Hermes gives Odysseus the herb moly to resist her, and after he overpowers her she becomes a generous host for a full year. Her island, Aeaea, is a place of seduction rather than a spa, but the idea of a beautiful retreat that strips men of their identity is entirely Homeric.
Polyphemus, Tyson and the Cyclopes
Ancient sources actually describe two kinds of Cyclopes. Hesiod's three, Brontes, Steropes and Arges, are sons of Uranus and Gaia who forge Zeus' thunderbolt. Homer's are a lawless race of shepherds on a distant island, and their most famous member, Polyphemus, is explicitly a son of Poseidon by the nymph Thoosa. So when Riordan makes Tyson a Cyclops son of Poseidon, he is following Homer more closely than viewers might think. Poseidon's curse on Odysseus for blinding his son drives the whole Odyssey, which makes the god's protectiveness toward a Cyclops child quite fitting. More on both groups at the Cyclopes.
Grover's disguise as a bride for Polyphemus also has a classical root. Hellenistic and Roman poets, especially Theocritus and Ovid, made Polyphemus a clumsy, lovesick suitor of the sea nymph Galatea, singing of his cheeses and his shaggy beauty. In Ovid he crushes his rival Acis under a rock. A Cyclops who wants a wife is therefore an ancient joke, not a modern one.
The Fleece, Pan and the camp's backstory
The Golden Fleece came from a flying ram sent to rescue the children Phrixus and Helle from their stepmother Ino. Helle fell into the strait later called the Hellespont; Phrixus reached Colchis, sacrificed the ram and gave its fleece to King Aeetes, who hung it in a grove guarded by a sleepless serpent. No ancient source gives it healing powers. Riordan's idea that it restores life to the land around it is invented, although in Apollonius of Rhodes it glows "like lightning" and is treated as the luck of Aeetes' kingdom. Jason's own quest is covered at the Golden Fleece and Jason.
Grover's search for Pan rests on a genuine ancient story. Plutarch, in his essay on the decline of oracles, tells of a sailor named Thamus who heard a voice off the island of Paxi telling him to announce that "Great Pan is dead." The tale fascinated later Christian writers and supplied Riordan with the idea of a vanished god of the wild.
Season 2 also shifts camp leadership to Tantalus, a joke for anyone who knows the myth. In the Odyssey he stands in a pool that drains away whenever he stoops to drink, beneath fruit branches the wind blows out of reach whenever he grasps at them; his crimes included stealing the gods' food or serving them his own son Pelops. Food that runs away from him at every meal is Riordan's comic version of the punishment.
Further reading
- Rick Riordan, The Sea of Monsters (2006) — the novel the season adapts.
- Homer, The Odyssey — Books 9–12 contain Polyphemus, Circe, the Sirens and Scylla and Charybdis; Emily Wilson's 2017 translation is very readable.
- Apollonius of Rhodes, Argonautica — the only complete ancient epic about Jason's voyage for the Fleece.
- Ovid, Metamorphoses Book 13 — Polyphemus' courtship of Galatea and the death of Acis.
- Plutarch, On the Obsolescence of Oracles — the "Great Pan is dead" story.
- Rick Riordan, Percy Jackson's Greek Heroes (2015) — Percy's own retellings, including Jason and Perseus.
Frequently asked questions
Is Tyson in Greek mythology?
No, Tyson is Riordan's invention. But Homer does make the Cyclops Polyphemus a son of Poseidon, so a Cyclops half-brother for a son of Poseidon has real mythological logic.
Does the Golden Fleece heal people in the myths?
No ancient source says so. The Fleece was a symbol of royal power and good fortune in Colchis; the healing ability belongs to the Percy Jackson books.
Is the Sea of Monsters a real place in mythology?
Not by that name. Riordan combines the hazards of Odysseus' wanderings, which ancient readers often placed around Sicily and southern Italy, and relocates them to the Bermuda Triangle.
Why is Tantalus in charge of Camp Half-Blood?
In the story he is let out of the Underworld to replace Chiron. The joke is that his eternal punishment, food and drink that always slip away, follows him to camp.