Queen of the Underworld (Tales of Olympus, #3)

The King of the Underworld saved me from the streets,
Treated me like a princess,
And locked me in a tower.
Then he turned into a beast.
There's a darkness in him.
I've seen it face to face.
He says I'm his light.
But if our love is going to last,
I'm going to have to be more than his princess.
I need to become a Queen.

The final chapter in Marcus and Cora's story.