Cassius of Olympus

The gods speak in whispers when they mention him. A warrior lost to history, older than Olympus, forged in blood and shadow. When Artemis calls in an ancient favor, Camp Half-Blood is introduced to a mysterious man known only as Oblivion. But behind the name is a secret buried so deep not even the Fates dare touch it.

As monsters stir and new threats rise from the void between realms, the campers must train under a being whose power defies classification - a man who walks like a god but bleeds like the rest of them. Nico senses something darker beneath the surface. Annabeth demands answers. Percy's instincts scream danger.

But one thing becomes clear:
This isn't a new chapter.
It's the return of an old legend.
And Olympus may never be the same.