Pokemon adventures XY / Kusaka, Hidenori

"The Legendary Pokemon Xerneas has transformed into a great tree, and whoever can possess it will also be in control of immense power! Meanwhile, Trainer Korrina has lost her battle, as well as her Key Stone. Feeling responsible for Korrina's defeat, X retreats once more into his home. Will X's friends ever get him to come back out of hiding again?!"--Back cover.

"In Kalos, X prepares for a rematch against Blue, a senior Pokedex holder. Meanwhile, the scheming Lysandre and Team Flare are up to no good at the mysterious Pokemon Village. Plus, a Mega Evolution occurs, the powerful Sundial is uncovered, and the Order Pokemon appears. What other new dangers await X, Y, and their friends?"--Back cover.

"X was a Pokemon 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! The mystery of Mega Evolution begins to unravel, and new Pokemon 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?!"--Amazon.com.