Clemont: wow... Its so nice in this cave

Ash: yeah!

Goh: *checks on rotom phone* it said that its a cave created for mega stones... Ash and Serena. gengar,absol, and mawile can mega evolve!

Ash: well lets go find some mega stones

Suddenly Gengar, absol, and mawile popped out of their pokeballs

Gengar: *points at the rock* (look over there.)

Ash: huh? *looks at direction* hey is that a mega stone?

Clemont: let me take a look... *takes out a magnifying glass* Its a gengarite!

Bonnie: does that mean gengar can evolve?

Clemont: kinda also need to find the key stone for gengar to mega evolve...

Bonnie: oh...

Goh: lets keep looking!

Ash: okay then.

When they got deeper into the cave they saw two stones with a dna like symbol.

Pikachu: (hey ash look!)

Ash: ? What's up?

Goh: its another mega stones!

Clemont: *checks* this time its an absolite and a mawilite!

Ash: thats amazing Serena!

Serena: any we'll be more better than ever!

Pikachu: *runs further into cave*

Ash: pikachu wait!!

When everyone got to the deepest part of the cave

Serena: Look it's its a rock with two stones on it!

Clemont: they're keystones!

Bonnie: i think that they're yours

Serena: *takes the keystone*

Ash: *takes the keystone*

Absol: (let me show you how to use it) *touches the key stone*

Serena: ??? Um... Mega evolve!

Absol mega evolves into mega absol.

Ash: woah... *activates keystone* Alright genger at full power! Mega evolve!

Genger: *mega evolves*

Pikachu: Pika!?!?

Clemont: they look more stronger than ever!

Serena: lets use this to becone more stronger you two!

Ash: we're gonna get more stronger right guys?

The pokemon agreed

Goh: lets head back on the trail!

Ash: alright!