The Trials of Apollo

'The Trials of Apollo is Rick Riordan's upcoming new series set after The Heroes of Olympus. The series will have five parts, with the first book in the series The Hidden Oracle slated to be released on May 3, 2016.

Origins
During his tour for The Sword of Summer, Riordan announced his next project, a five part series about the god Apollo. The series will be about how Apollo has been turned into a human because Zeus is angry with him. He becomes a 16-year-old mortal boy in New York City with absolutely no powers. He's got lots of enemies and only a few friends — friends who spend their time at Camp Half-Blood.

Our first glimpse at this new series will come when Riordan publishes Demigods & Magicians on April 5, 2016.

Books

 * The Hidden Oracle - May 3, 2016