Rick Riordan (Author) Rick Riordan (he/him), dubbed 'storyteller of the gods' by Publishers Weekly , is the author of five #1 New York Times best-selling middle grade series with millions of copies sold throughout the world, including Percy Jackson and the Olympians, now a live-action series on Disney+. Rick is also the publisher of an imprint at Disney-Hyperion, Rick Riordan Presents, dedicated to finding other authors of highly entertaining fiction based on world cultures and mythologies. He lives in Boston, Massachusetts with his wife and two sons. Follow him on Twitter at @RickRiordan. Mark Oshiro (Author) Mark Oshiro (they/them) is the author of the young adult books Anger Is a Gift , winner of the 2019 Schneider Family Book Award, and Each of Us A Desert , an NPR Best Book of 2020. Their middle grade books include The Insiders , a Publishers Weekly Best Book of the Year; and You Only Live Once, David Bravo . Mark also contributed a short story to the Star Wars anthology Empire Strikes Back : From a Certain Point of View . Mark is based in Atlanta, Georgia and can be found on Twitter @MarkDoesStuff.