Pokemon Omega Ruby & Alpha Sapphire Vol. 2 (manga)

Ruby, Sapphire and Emerald face a new crisis of epic proportions—a giant meteor hurtling toward the planet! When Emerald, Sapphire and Steven arrive in Sea Mauville to train, Emerald is attacked by a mysterious Pokémon. Meanwhile, Ruby can’t figure out who truly has the power and desire to save the world. Could it be Ruby himself?! Why have Team Aqua and Team Magma joined evil forces…?