Attie McAllister thought she was just decoding a forgotten journal. Turns out, she’s cracking open history itself. In this thrilling third installment of the Charms Book Series , our favorite 15-year-old inventor and adventure-seeker dives deeper into the mystery of The Six - a secret team of early 20th-century innovators whose hidden research may hold the key to solving some of today’s biggest challenges. After discovering a cryptic photo and a faded journal in Aunt Loxley’s studio, Attie and her best friends Jenny and Raye find themselves on a cross-country quest - decoding clues, unraveling ciphers, and uncovering the roots of a long-lost project known only as HELIOS. But when a freak accident rocks their world and the past begins to collide with the present, the girls realize this isn’t just about solving an old mystery, it’s about protecting the future. From the archives of Wentworth House to the experimental gardens of Mount Vernon, Where Clues Take Root is packed with travel, teamwork, tech, and truth. Along the way, Attie learns the power of project management, the strength of silent transformation, and the legacy hidden in her own family tree. Can Attie piece together the past before someone else buries it for good? Life Skill Focus : Project Management Foreword By: Akshaya Koramutla Meet the Series That’s Inspiring Girls Everywhere! Book Order 1 Rocket City Love – Every inventor’s story starts with a spark. 2 Tick Tock, Take Charge! – Adventure doesn’t come with a pause button. 3 Where Clues Take Root – Decode the past. Protect the future. 4 Blueprints & Buried Truths – From hidden ciphers to hydrogen power, the secrets of HELIOS rise. 5 Calculated Risks – The formula for courage: friendship + truth + risk. 6 The Gravity of Choice – Decisions have gravity. Attie’s could shift the future. 7 Legacy Protocol – HELIOS was never lost—it was waiting for her. Download & Learn by Doing — Just Like Attie Each book includes a download (available at the Charms Book Series website) to help readers apply Attie’s real-world life skills: time management, leadership, budgeting, pitching, and project planning. Learn by doing and see how STEM and storytelling connect! Your Purchase Makes a Difference By purchasing this book—or any Charms merchandise—you’re supporting Athenian , a STEM edu-tainment nonprofit dedicated to empowering girls through hands-on learning, storytelling, and real-world adventure. Every Charms purchase fuels our mission to build confidence, character, and curiosity in the next generation of innovators. Together, we’re shaping the future—one story at a time. If you like Tree House Mysteries, The Baby-Sitters Club, Nancy Drew, Carole Marsh’s mystery books, National Park Mystery Series, The Math Inspector series, then the Charms Book Series is the natural next step. Those favorites deliver friendship, adventure, and curiosity and Charms keeps that same feel while leveling up for ages 8–14 (grades 6–9) with older characters, deeper thinking, and real problem-solving. This juvenile fiction / middle grade chapter book series for girls blends mystery and STEM-ready curiosity with life skills like decision-making, confidence, responsibility, and leadership making it perfect for reluctant readers, libraries, book clubs, and parents who want fun, safe stories that quietly strengthen literacy. Still funny. Still wholesome. Just a little more “you’ve got this” and a lot less hand-holding.