For more than fifty years, no human being traveled beyond low Earth orbit. Artemis II is the story of the mission that ended that silence.Blending aerospace history, engineering, politics, and human experience, this book traces the long path from the final Apollo mission in 1972 to humanity's return to deep space aboard NASA's Artemis II mission in 2026.Through the development of the Space Launch System, the Orion spacecraft, and the Artemis program itself, the book explores the technical challenges, institutional failures, political debates, and decades of delay that shaped humanity's return to the Moon.At its center are four astronauts — Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen — traveling farther from Earth than any humans in more than half a century aboard a spacecraft named Integrity.Written in a narrative style grounded in real aerospace history and engineering, Artemis II examines not only how the mission happened, but what it reveals about ambition, risk, exploration, and the unfinished relationship between humanity and the Moon.