Attie McAllister has never been one to sit still. With a NASA scientist mom training for a mission to the International Space Station, an FBI agent dad heading on a covert assignment in Europe, and her adventurous Aunt Loxley unraveling forgotten history, Attie is used to life moving fast. But when she stumbles upon an old photograph of students from Carnegie Mellon—The Six—her curiosity takes over. As Attie balances her e-bike invention, her best friend’s growing YouTube channel, and a new obsession with project management, she realizes she’s not just chasing history—she’s racing against time. With clues showing up in the unlikeliest of places, Mom uncovering dangerous truths at NASA, and Dad navigating global tensions, Attie and her best friend Jenny must document, decode, and disrupt before it’s too late. Because if The Six were silenced before they could finish their work… What will happen now that Attie is piecing the clues together? Welcome to the Amazing Adventures of Attie McAllister—15-year-old inventor, problem solver, and explorer of all things STREAM. Whether it’s engineering her latest project, building her high school resume, or uncovering hidden history, Attie’s world is full of limitless possibilities. Life Skill Focus : Time Management Foreword By: Jacob Peed, Publisher of AviNation Magazine 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.