Author: Okogwu, Tola General fiction (Children's / Teenage)Published on 25 September 2025 by Simon & Schuster Ltd in the United Kingdom.Paperback | 272 pages129 x 198 x 19 | 200g A brand-new, epic sci-fi action-adventure where friendship is tested to the limits from bestselling author T?lá Okogwu. Perfect for 8+ fans of the Onyeka series, Star Wars and Marvel! When a powerful group of aliens threaten Earth, a mysterious species called the Onni offers humanity hope. But there’s a catch. Ninety-one children from across the planet must first prove their worth by competing in a series of trials set on a distant planet. For twelve-year-old Kola, who has long dreamed of going into space, it’s the chance of a lifetime. But once aboard the Onni mothership, Kola finds himself thrown into a misfit team of Champions. As secrets unravel and tensions rise, Kola and his team must decide who to trust and what it really means to be a Champion. Because in the end, it’s not about being the smartest or the strongest. It’s about standing together. Praise for Tola Okogwu’s Onyeka and the Academy of the Sun: ‘Brilliant characters, action-packed plot, heartfelt themes of identity, family and friendship. A DAZZLING story about finding your power.’ Sophie Anderson, author of The House with Chicken Legs ‘An incredible story that reinvents the concept of a school for magical kids. So inspiring and creatively original.’ L. D. Lapinski, author of The Strangeworlds Travel Agency ‘Fast-paced, action-packed and empowering. T?lá Okogwu’s storytelling shines so bright you’ll want the next instalment immediately.’ A. F. Steadman, author of Skandar and the Unicorn Thief ‘An inspiring, original and exciting roller coaster of a book.’ Katie Tsang, co-author of Dragon Mountain ‘A rich and gripping story of discovering that your greatest power can come from within. I loved it!’ Lisa Thompson, author of The Goldfish Boy ‘Brilliant, witty writing and spot-on characterisation.’ Louie Stowell, author of Loki: A Bad God’s Guide to Being Good ‘A thrilling, magical page-turner. Children will fall in love with this story.’ Jenny McLachlan, author of The Land of Roar 'Wildly fun and a huge breath of invigorating fresh air.’ Sam Copeland, author of Charlie Changes Into a Chicken ‘A thrilling, action-packed adventure full of heart. Onyeka is sure to be everyone's new favourite superhero.’ Hannah Gold, author of The Last Bear
