Pokémon Adventures: The Gym Leaders' Alliance is the twenty-first monthly issue released by VIZ Media of the Pokémon Adventures manga created by 日下秀憲 Hidenori Kusaka and 真斗 Mato. It contains chapters five, six, and seven of the Yellow arc. The chapters originally released in this book were later rereleased as part of Volume 4. As a bonus, it contained a sheet of Pokémon stickers which were not included with the collected volume release.