You enter the deepest parts of the cave that the dragon has left untouched, and face before your friend. They look at you with malice, desire, and greed.
"I've waited a long time to release my deity..." they said in a distorted voice.
You wield your weapon with courage.
"You will not save your world, and I have never cared about being your friend. My deity is everything to me!"
The distorted figure of your friend reveals the stone in their chest, glowing a bright purple. You feel all your anger and sadness overwhelm you as you use your most powerful attacks to defeat your enemy, the friend you cared about the most, now showing their true colors...