when does the next book in the trials of apollo come out
The Trials of Apollo The first book in the series, The Hidden Oracle, was released on May 3, 2016.[2] The second book in the series, The Dark Prophecy, was released on May 2, 2017.[3] The third book in the series, The Burning Maze, was released on May 1, 2018. The fourth book in the series, The Tyrant's Tomb, will be released in October 2019.