The Sea of Monsters: Percy Jackson and the Olympians, Book 2

Book review by
Matt Berman, Common Sense Media
The Sea of Monsters: Percy Jackson and the Olympians, Book 2 Book Poster Image
Parents recommendPopular with kids
Exciting myth-based series continues.

Parents say

age 10+
Based on 15 reviews

Kids say

age 9+
Based on 88 reviews

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A lot or a little?

The parents' guide to what's in this book.

Educational Value

Ancient Greek myths and characters are woven in throughout.

Positive Messages

Themes of friendship, loyalty, and doing the right thing throughout. Also, sticking up for those who are often picked on.

Positive Role Models & Representations

Percy is a hero who also sticks up for his friends, especially Tyson, his half-brother who is often ridiculed. He even sticks up for his rivals, helping the proud Clarisse out of a bind. Annabeth is a smart, resourceful girl character (but often lets Percy take the lead).


A lot of light fantasy violence with no serious consequences: wounded heroes are magically cured, and slain monsters vanish in a puff of smoke, to reappear later.


Soft drink brands, especially Coke.

Drinking, Drugs & Smoking

What parents need to know

Parents need to know that there is violence here, but very mild compared to many fantasies for this age: wounded heroes are magically cured, and monsters are killed, vanishing in a puff of smoke, but can reappear later.

User Reviews

  • Parents say
  • Kids say
Parent Written byhannah1991 July 12, 2020
Personally, this was my favorite book in the series because it, like the first book, dealt with Greek mythology, which I love a lot! Also, I can relate to the m... Continue reading
Adult Written byalyssa_is_a_ jock May 1, 2016

The sae of monster

This book was about how a group of teenage boys and girl went on a mission to find a cure for thalia so the border that keeped camp of half bloods will be safe... Continue reading
Teen, 13 years old Written byMaddyhughes14 July 9, 2020


I still enjoy this book at 14. Definitely recommend :)
Kid, 8 years old September 22, 2019

Awesome fantasy!!!

This is an awesome book if you like Greek myths, sword fighting, monsters and adventure. This is the second book in the series. Percy Jackson, the main chara... Continue reading

What's the story?

Percy Jackson, son of a mortal mother and the Greek god Poseidon, returns to Camp Half-Blood, only to find it beset by monsters. The camp's protections are breaking down -- someone has poisoned Thalia's tree, which guards the camp, and Chiron has been fired, replaced by the evil Tantalus, who has been let out of Hades. Meanwhile, Percy has been having dreams about his friend Grover, who is held captive by a cyclops. It seems that only the Golden Fleece can save the camp, but it is guarded by the same cyclops that has Grover, and Clarisse, not Percy, has been given the quest to get it.

Is it any good?

The Percy Jackson series continues to be pure fun, with the author doing nearly everything right to produce a book that few kids will be able to resist. At the most basic level, he keeps the action percolating, the pacing flawless, and manages to give the reader the impression of a violent action-adventure without a lot of the kind of violence that worries parents. There's no swearing or drinking or sex, yet Percy's slightly sardonic voice makes it totally cool. Unlike far too many fantasies these days, it's not overlong, which means it doesn't sag in the middle, and it won't intimidate less avid readers.

But because of its roots in Greek myth, even the more avid readers will find plenty to chew on. The book is filled with clever references to major and minor Greek characters, stories, and monsters, all updated in often hilarious ways for the 21st century. For kids who know their way around D'Aulaires' Book of Greek Myths, half the fun is making the connections. Who are those three crazy ladies driving the taxicab out to the camp? Perhaps their squabbling over an eyeball is a hint, not only to who they are, but to what story is about to be reenacted. Great fun for everyone.

From the Book:
I couldn't see what was chasing him, but I could hear it muttering and cursing. The ground shook as it got closer. Grover dashed around a street corner and faltered. He'd run into a dead-end courtyard full of shops. No time to back up. The nearest door had been blown open by the storm. The sign above the darkened display window read: ST. AUGUSTINE BRIDAL BOUTIQUE.

Grover dashed inside. He dove behind a rack of wedding dresses.

The monster's shadow passed in front of the shop. I could smell the thing—a sickening combination of wet sheep wool and rotten meat and that weird sour body odor only monsters have, like a skunk that's been living off Mexican food.

Talk to your kids about ...

  • Families can talk about the many Greek myths referenced in The Sea of Monsters: Percy Jackson and the Olympians, Book 2. How many can you find? What are the original stories? How have they been updated for modern times?

  • What did you learn about Percy Jackson in this book that you didn't know in The Lightning Thief? What do you like about him? What character strengths does he show? 

  • Try writing your own modern update on a classic myth.

Book details

Our editors recommend

For kids who love mythology and adventure

Themes & Topics

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