The Hero of Ages: Book Three of Mistborn

After the events of the Well of Ascension, the godlike being Ruin has been unleashed upon the world, threatening its destruction. Vin, who unwittingly enabled this, must now find a way to stop him.

Emperor Elend Venture, now a Mistborn, seeks clues left behind by the Lord Ruler to aid their fight against Ruin. Legends speak of a hero, but the prophecies may be corrupted.

Vin must unravel the truth and embrace her destiny to become the Hero of Ages. The fate of the planet rests on her ability to understand the prophecies and prevent Ruin from wiping out all life.