|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||6 days ago||41.19||$22.95||You save $18.24|
|Amazon US||yesterday||28.62||$22.95||You save $5.67|
Rick Riordan is #1 New York Times bestselling author of the Percy Jackson and the Olympians series, and the author of the upcoming first installment in the 39 Clues series. For 15 years, Riordan taught English and history at public and private middle schools in the San Francisco Bay Area and in Texas. He lives in San Antonio with his wife and two sons.