The Trials of Apollo - The Hidden Oracle

The Trials of Apollo is a pentalogy of fantasy adventure and mythological fiction novels written by American author Rick Riordan that collectively form a sequel to the Heroes of Olympus series. 
 
The Hidden Oracle is a fantasy novel based on Greek and Roman mythology written by American author Rick Riordan. It was published on May 3, 2016, and is the first book in The Trials of Apollo series, the second spin-off of the Percy Jackson & the Olympians series.
 
In very good condition