Dia, Pearl, and Platinum must battle the Pokémon Dialga and Palkia who are controlled by Team Galactic, but when a new Pokémon joins the fight, everyone is left wondering whose side it is on.

Illustrations and text introduce at least one Pokemon for each letter of the alphabet.

An adventure featuring favorite Pokémon game characters follows the tales of Dia's disastrous intervention in the aftermath of Girantina's attack and Lady's discovery of an unexpected ally.

"Want to find out how Pokémon Trainer Ash Ketchum got started on his quest? Relive all his heroic adventures in this book! We'll take you through Kanto, Johto, Hoenn, Sinnoh, Unova, and Kalos. Along the way, you'll...* Discover amazing Pokémon, Gym leaders, Rangers, and rivals! * Spot rare and remarkable Legendary and Mythical Pokémon. * Learn the stats and facts on Ash's coolest Gym battles and badges! * Meet Ash's closest friends and most dangerous...

X was a Pokémon Trainer child prodigy. He hated being in the spotlight, so he took to hiding in his room and avoiding everyone-including his best friend Y. But now a surprise attack has brought X out of hiding!-

"Sapphire and Emerald need Ruby's help to stop a crisis of planetary proportions-a meteor hurtling toward their home! While training with Sapphire and their friend Steven in Sea Mauville, Emerald is attacked by a mystery Pokémon! Meanwhile, Ruby journeys to the Sky Pillar to earn the trust of Zinnia, the Lorekeeper of the reclusive Draconid tribe. Can three Hoenn Pokédex holders stop a crisis of epic magnitude?"--

Professor Birch sends Sapphire and Ruby to help Emerald find the Wish Pokémon Jirachi, but first Ruby discovers something surprising about Emerald's Sceptile, and everyone learns the true identity of their archnemesis, Guile Hideout.

"The mystery of Mega Evolution begins to unravel, and new Poǩmon join X and Y and their friends as they face an intensifying battle! Meanwhile, the headquarters of the Mega Evolution family, the Tower of Mastery, is under attack by a mysterious figure in a mechanical suit! Who is the masked marauder named Essentia?!"--page [4] of cover.

"X was a Pokémon Trainer child prodigy. He hated being in the spotlight, so he took to hiding in his room and avoiding everyone--including his best friend Y. But now a surprise attack has brought X out of hiding! Now it's up to X to use the skills that made him champion to defeat the threat looming over Vaniville Town. Can the reclusive X and the determined Y help their friends ward off two Legendary Pokémon and the mysterious Team Flare?!"--Provided...

"Ash is back and more determined than ever to be a Pokémon Master! Now he's teamed up with a new friend, Goh, who wants to collect every Pokémon from every region! Ash takes part in the Pokémon World Coronation Series to further his plans to become a PokémonMaster! Meanwhile, Goh and his new partner Raboot continue to strengthen their bond. But will Raboot be willing to help Goh catch one of every type of Pokémon?!"-- provided by publisher.