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Begin with The Hidden Oracle and read all five books in order.
Book Series · 5 Books
The Trials of Apollo Books
In order from The Hidden Oracle to The Tower of Nero.
The god Apollo is cast to Earth as a mortal teenager and must restore five ancient oracles while learning humility, loyalty, and the cost of earlier choices.
Reviewed by the Bookroo Editors Updated
Reading order
How to Read The Trials of Apollo
Read the five novels in numbered order; this is one continuous quest. In the larger Camp Half-Blood timeline, read Percy Jackson and the Olympians, then Heroes of Olympus, then Trials of Apollo.
Camp Half-Blood Confidential and Camp Jupiter Classified are optional guides and side stories, not numbered Trials novels.
Sources: Rick Riordan's Trials of Apollo page, Rick Riordan's sequence FAQ.
For parents
What Parents Should Know
Expect frequent monster battles, weapons, imprisonment, manipulation and abuse, grief, and consequential character deaths. The Burning Maze contains an especially important on-page death. LGBTQ+ characters and relationships are ordinary parts of the world.
Where to start
Where Should a New Reader Start?
Where the story begins
First Book in the Series
Sale price
$1899
Book #1 · Chapter Book · Ages 10–14 · 2016
The Hidden Oracle
By Rick Riordan
A fallen god must navigate modern life and enemies to regain his immortality.
376 pages· 83,167 words· Est. 9.5 hour read
$19.99Save 5%
Hardcover
Summary: Stripped of his divine powers, Apollo, once a mighty god, finds himself as a vulnerable teenager in New York City. With enemies lurking at every corner, he must navigate the perils of the mortal world and seek refuge at Camp Half-Blood. Can Apollo reclaim his place on Olympus, or will his foes ensure his downfall? Join him on a thrilling quest filled with mythic challenges and unexpected allies.
In reading order
The Trials of Apollo Series
5 books · Published 2016–2020
#1
Sale price
$1899
The Hidden Oracle
Chapter Book · Ages 10–14 · 2016
A fallen god must navigate modern life and enemies to regain his immortality.
#2
Sale price
$1899
The Dark Prophecy
Chapter Book · Ages 10–14 · 2017
A fallen god must restore dark Oracles to regain his divine status.
#3
Sale price
$1899
The Burning Maze
Chapter Book · Ages 10–14 · 2018
A fallen god must navigate a deadly maze to stop ancient emperors from destroying a demigod camp.
#4
Sale price
$1899
The Tyrant's Tomb
Chapter Book · Ages 10–14 · 2019
Apollo, now human, must save Camp Jupiter from a deadly Roman threat.
#5
Sale price
$1899
The Tower of Nero
Chapter Book · Ages 10–14 · 2020
A fallen god must reclaim his power amidst deadly foes and ancient prophecies.
Optional camp guides and side stories
Camp Half-Blood Companion Books
2 books · Published 2017–2020
Two humorous guidebooks add setting background but are not required between the five novels.
Sale price
$1248
Camp Half-Blood Confidential
Chapter Book · Ages 8–12 · 2017
Discover the secrets and chaos of Camp Half-Blood beyond the orientation video.
Sale price
$1049
Camp Jupiter Classified
Chapter Book · Ages 8–12 · 2020
Mysterious chaos threatens Camp Jupiter. Is Claudia, a trickster's daughter, to blame?
Good to know
Common Questions
How many books are in the Trials of Apollo series?
There are 5 books in the Trials of Apollo series. It began with The Hidden Oracle in 2016, and the newest book, The Tower of Nero, was published in 2020.
What order should you read the Trials of Apollo books in?
Start with The Hidden Oracle and follow the series order — the books above are numbered #1 through #5.
What ages are the Trials of Apollo books best for?
The series is best for ages 10–14, based on the age ranges of the individual books.
Which Trials of Apollo book is the longest?
The Tyrant's Tomb (Book #4) is the longest book in the series at 99,922 words (439 pages).
Which Trials of Apollo book is the shortest?
The Hidden Oracle (Book #1) is the shortest at 83,167 words (376 pages).
The people
The Creative Behind the Books
The people who bring The Trials of Apollo to life.
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