Pokemon Omega Ruby Alpha Sapphire, Vol. 2, Paperback

Adventures inspired by the best-selling video games
Picking up where their saga left off, Sapphire and Emerald train in the new techniques of Mega Evolution to prepare for the next crisis of epic proportions. And they'll need Ruby's help too
Sapphire and Emerald continue their training in Mega Evolution with Ultima while the two enemy leaders of Team Aqua and Team Magma join evil forces to recover the powerful Red and Blue Orbs. Who has the best plan to save the world from a giant meteor--the suspicious Devon Corporation, True Lorekeeper Zinnia or the Trainer who has earned Rayquazza's trust?
And who might that special Trainer be...?