I

It's a 100 years after the Second Giant war was finished, and a new prophecy has been issued to a young son of Hades. The hearth on Olympus has gone cold, and three demigods are sent to find out why and to set things right. But no one is ready for what they find, and what it means for the gods.

This was inspired by a Tumblr headcanon we believe to be by @Herondalectable, so thanks for the awesome idea!