Pokemon Adventures Collector's Edition manga volume 6 collects volumes 16, 17, and 18 in an omnibus format and features story by Hidenori Kusaka and art by Satoshi Yamamoto.

Trainer Ruby must battle his scariest opponent yet…his father! Meanwhile, Sapphire is having trouble getting in her quota of Gym battles. One Gym Leader wants to just hand her a badge without a proper fight, and another has been…kidnapped?! Behind the scenes, it looks like Team Magma, with a little help from Team Aqua, might be the reason Ruby and Sapphire are on a losing streak!