Setting

Set in the early 2000s, The Sea of Monsters takes place primarily in Long Island, New York, with much of the action occurring at Camp Half-Blood and in the mythical Sea of Monsters,  known to mortals as the Bermuda Triangle. The story moves between the mortal world and magical locales hidden from ordinary humans. Key settings include Percy's school in New York City, the magical camp for demigods, and various islands within the Sea of Monsters. Circe's island spa and the lair of the Cyclops Polyphemus are particularly notable locations that blend the mythological with the modern.

Throughout the novel, Rick Riordan skillfully interweaves Greek mythology with contemporary American settings. This juxtaposition creates a unique backdrop where ancient monsters and gods interact with smartphones and cruise ships, bringing classical myths to life in a modern context. The blend of familiar urban landscapes with fantastical elements establishes a world where the extraordinary lurks just beneath the surface of everyday life.

Characters

• Percy Jackson: The protagonist, the 13-year-old demigod son of Poseidon. He embarks on a quest to save Camp Half-Blood by retrieving the Golden Fleece from the Sea of Monsters. Percy is brave, loyal, and has the ability to control water. He struggles with dyslexia and ADHD, but these traits also contribute to his demigod abilities.

• Annabeth Chase: Daughter of Athena and Percy's close friend. She accompanies Percy on his quest and provides valuable strategic insight. Annabeth is intelligent, brave, and skilled in combat. She has a complex relationship with Luke and harbors deep feelings for Percy, though she struggles to express them.

• Grover Underwood: A satyr and Percy's loyal best friend. He has a kind heart and strong connection to nature. Grover is captured by the Cyclops Polyphemus while searching for the god Pan, which serves as the initial motivation for Percy's quest.

• Tyson: Percy's newfound Cyclops half-brother. Initially perceived as a homeless child, Tyson joins Percy on his quest and proves to be a valuable ally. He is compassionate, strong, and skilled at crafting. Tyson's presence challenges Percy's preconceptions about Cyclopes and forces him to confront his own prejudices.

• Clarisse La Rue: Daughter of Ares and Percy's rival at camp. She is given the official quest to retrieve the Golden Fleece. Clarisse is aggressive and prideful, but also a capable fighter. Her interactions with Percy showcase the complexities of demigod relationships and rivalries.

• Luke Castellan: Son of Hermes and the primary antagonist. Luke works for the Titan Kronos and attempts to thwart Percy's quest. He is cunning, bitter, and feels betrayed by the gods. Luke's actions drive much of the conflict in the story.

• Chiron: The immortal centaur who serves as activities director at Camp Half-Blood. He is falsely accused of poisoning Thalia's tree and temporarily removed from his position. Chiron is wise, caring, and dedicated to training young heroes.

• Tantalus: The temporary replacement for Chiron at Camp Half-Blood. He is cruel and dismissive of the campers' concerns. Tantalus serves as an obstacle to Percy's plans and represents the dangers of poor leadership.

• Polyphemus: The Cyclops who has captured Grover and possesses the Golden Fleece. He is a fearsome opponent and represents the classic mythological threats faced by heroes.

• Thalia Grace: The daughter of Zeus whose spirit resides in the tree that protects Camp Half-Blood. Her poisoning drives the plot, and her eventual resurrection adds complexity to the prophecy regarding Percy.

Quick facts

• The Sea of Monsters is the second book in the Percy Jackson & the Olympians series, following The Lightning Thief.

• The book introduces new characters that become important later in the series, including Tyson, Percy's cyclops half-brother, and Clarisse La Rue, Percy’s rival.

• The story features Percy's first encounter with the Sea of Monsters, also known as the Bermuda Triangle.

• In 2013, The Sea of Monsters was adapted into a graphic novel, illustrated by Attila Futaki.

• The audiobook version is narrated by actor Jesse Bernstein.

• A film adaptation was released in 2013 starring Logan Lerman as Percy Jackson.

• The Sea of Monsters sold more than 100,000 copies in hardcover.

• The story ends with the resurrection of Thalia Grace, setting up events for the next book. 

• The second season of the Disney+ television series Percy Jackson and the Olympians

About the Author

Rick Riordan is a bestselling American author best known for his young adult fantasy series Percy Jackson & the Olympians. Born in 1964 in San Antonio, Texas, Riordan worked as an English and history teacher for 15 years before becoming a full-time writer. He began writing mysteries for adults but found major success when he created the character of Percy Jackson as a bedtime story for his son, who had been diagnosed with ADHD and dyslexia.

Riordan's breakout novel The Lightning Thief, published in 2005, launched the immensely popular Percy Jackson series about a modern teenage demigod. This was followed by sequel series like The Heroes of Olympus and spinoffs focused on Egyptian and Norse mythology. His books have sold more than 30 million copies in the US alone and have been translated into 42 languages.

Riordan has written several standalone novels and helped develop other series for young readers, including  The 39 Clues. He has won numerous awards for his work, including the Rebecca Caudill Award and the Children's Choice Book Award for Author of the Year. In 2016, Disney-Hyperion announced the “Rick Riordan Presents” imprint to publish diverse mythology-based fiction by emerging authors, with Riordan serving as curator.

Riordan continues to be a prolific writer, releasing new books almost yearly across his various series. He has also been involved as executive producer in adapting Percy Jackson for television on Disney+. He lives in Boston with his wife and has two sons.