The battle, finished.
You stand victorious within the decaying hivemind of The Infectageddon.
As your surroundings change from the dull broken void to outside of the dragon's cave, you see your party.
Un-invaded but exhausted, your party stands strong.
The Infectageddon, now a writhing mass of black glitching fluid in the shape of a person on the ground, lays in a purely distorted form, lifeless.
It is over.
The calamity had failed.
And you have grown stronger.
You are still capable of using the power of light at will.
What's left of The Infectageddon shrunk back into the purple glowing stone, and the stone's vibrant purple glow vanished, leaving behind grey obsidian.
You see the sovereigns reaching for the stone, but you prevent them from touching it, fearing its reawakening.
Using a gentle wave of your hand, an orb of light surrounds the stone, and crushes it. Leaving the dormant calamity in eternal darkness.
The town, the dragon, and your party roar in celebration.