"As Henry and Opal's battle wages on in Ballonlea, Gym Leader Raihan infiltrates the Hammerlocke Energy Plant to investigate a strange occurrence there. Then, Casey must battle Opal for her own Gym challenge."--Back cover.
General Note: In English, translated from the Japanese.Reads from right to left in the traditional manga format."Original Japanese edition published by Shogakukan"--Copyright page."A Pokémon adventures special edition!"--Back cover.