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.