Disney Publishing Worldwide announced a three-million copy first print run for The Blood of Olympus by Rick Riordan, the fifth and final installment in the author's Heroes of Olympus series.

The Blood of Olympus will be released in print and digital from Disney-Hyperion, and as an audiobook through Listening Library, on October 7. More than 40 million books are currently in print in the U.S. across Riordan’s three series: Percy Jackson and the Olympians, The Kane Chronicles, and The Heroes of Olympus.