The Trials of Apollo

The Trials of Apollo
	Logo of the series
	The Hidden Oracle (2016); The Dark Prophecy (2017); The Burning Maze (2018); The Tyrant's Tomb (2019); The Tower of Nero (2020);
Author	Rick Riordan
Cover artist	John Rocco
Country	US
Language	English, Latin, Indonesia, Spanish and others (depends)
Genre	Children's fantasy; Action fiction; Adventure fiction; Middle grade fiction; Classical mythology; More genres: Greek mythology; Roman mythology; Children's fiction; ;
Publisher	Hyperion (US); Penguin/Puffin (UK, AU, NZ);
Published	2016–2020
Media type	Print (hardcover and paperback), audiobook, e-book
No. of books	5
Preceded by	The Heroes of Olympus
Followed by	The Nico di Angelo Adventures

The Trials of Apollo is an American children's fantasy action-adventure middle grade children's fiction book series based on Greco-Roman classical mythology written by American author Rick Riordan. It is the third of four book series in the Camp Half-Blood Chronicles, succeeding Percy Jackson & the Olympians and The Heroes of Olympus, and preceding The Nico di Angelo Adventures. A supplementary book, Camp Jupiter Classified, has also been released in addition to the main series.

The first book in the series, The Hidden Oracle, was released on May 3, 2016. The second book, The Dark Prophecy, was released on May 2, 2017. The third book, The Burning Maze, was released on May 1, 2018 The fourth book, The Tyrant's Tomb, was released on September 24, 2019. The fifth book in the series, The Tower of Nero, was released on October 7, 2020.