It's goodbye to an old friend, and hello to a new one in the biggest adventure of Ash's life! When Professor Oak sends Ash on a mission to the Orange Islands, surprises await the young Pokémon Trainer at every turn. One member of Ash's team will say goodbye forever---maybe. A stranger will join the group. But who is he, really? And a gentle new Pokémon is discovered--only it may perish without Ash's help....

This reissued illustrated chapter book is based on the characters found in Pokemon GO and the classic animated episodes on Netflix.