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) Author Rick Riordan Cover artist John Rocco Country United States Language English Genre Greek mythological fiction, fantasy, adventure and children 's fiction Publisher Hyperion Books Published 2016 -- present Media type Print (hardcover and paperback), audiobook, e-book No. of books 3 (as of 2018) Preceded by The Heroes of Olympus
what is the fourth book in the trials of apollo
The Tyrant 's Tomb