What is the name of the first book in the series that precedes The Heroes of Olympus?
The Heroes of Olympus The Heroes of Olympus is a pentalogy of adventure, mythological fiction and fantasy novels by American author Rick Riordan that collectively form a sequel series to the "Percy Jackson & the Olympians" series. This series details a conflict between Greek and Roman demigods and Gaea, the earth goddess. Riordan introduces Roman mythology into his sequel series as well as several new characters. The first book of the series, "The Lost Hero", was published on October 12, 2010. The final entry in the series, "The Blood of Olympus", was published on October 7, 2014.
The Faerie Wars Chronicles The Faerie Wars Chronicles is a fantasy action young adult novel series written by James Herbert Brennan. The first book in the series, "Faerie Wars" was published in the United Kingdom in February 2003 by Bloomsbury Publishing. As of 2011, there are five books in the on-going series.