In the blink of an eye, Theo and Ben are transported from the Secret Library to the heart of ancient Jerusalem! They discover they've arrived during a crucial time—the rebuilding of the city walls under Nehemiah's leadership. To return home, they need to recover three missing pieces of a magical scroll, but a boy has snatched one and disappeared into the bustling streets. As the boys chase him, they learn about Nehemiah's leadership, perseverance, and trust in God, all while dodging danger. With enemies closing in, can they finish their mission and make it back to the home—or will history change them forever?