Justice in the Hall: Secret Codex Justice is back! But the hallways of Public School 23 are trading in their election posters for ancient artifacts. On a field trip to the Cincinnati Art Museum , Justice Madison is ready for art—not a crime scene. The museum’s most priceless object, the ancient Scarab of Truth , vanishes right before her eyes, triggering alarms and sending the city police into action. The case quickly leads Justice and Detective Ramirez away from the quiet galleries and into the dark, abandoned tunnels of Cincinnati’s forgotten subway system . The thief isn't just stealing—they're playing a game. They leave a trail of silver glitter and meticulously crafted numeric codes that only Justice can decipher. With every code she cracks, Justice gets closer to unmasking the thief, who she realizes is one step ahead, using the historic city as their escape route. Can Justice decode the messages from the Secret Codex before the thief slips away forever? BECOME THE DETECTIVE! This book is perfect for young readers (Ages 7-11) who love puzzles: Crack the Codes: Use the Alphabet Codex Key at the back of the book to decipher the thief's messages hidden throughout the chapters. - Track the Evidence: Follow Justice as she hunts for clues in the tunnels, hotel basements, and across the Roebling Suspension Bridge . - Go Online: Visit JusticeInTheHall.com to use the interactive Official Codex Cipher and unlock even more bonus clues that aren't in the book!