This Costco-exclusive box set brings together eight middle grade paperback books from Rick Riordan's beloved mythology-based adventure series, offering an ideal entry point into one of the most celebrated authors in children's fiction. The set spans multiple series from Riordan's interconnected universe, drawing on Greek, Roman, Egyptian, and Norse mythology to create action-packed stories aimed at readers aged 8–12.

Rick Riordan is the #1 New York Times bestselling author behind Percy Jackson and the Olympians, The Kane Chronicles, The Heroes of Olympus, Magnus Chase and the Gods of Asgard, and The Trials of Apollo. His signature blend of classical mythology, humor, and fast-paced plotting has made his books a gateway to reading for millions of young people worldwide.

The various-series format of this box set introduces readers to multiple Riordan universes, making it a perfect gift for new fans looking to explore the full scope of his storytelling.