The Dark Prophecy

The Dark Prophecy is 2017 American children's fantasy action-adventure middle grade children's fiction novel based on Greco-Roman classical mythology written by American author Rick Riordan. It was published on May 2, 2017, and is the second book in The Trials of Apollo series, the second spin-off of the Percy Jackson & the Olympians series. The book and its cover art by John Rocco were first announced in 2016. It has been published in hardcover, paperback, audiobook, ebook, and large-print editions. The Dark Prophecy has been translated into seven languages from its original English.