Adeline Blackwood didn't know much about life outside Camp Half-Blood. She didn't even know who her divine parent was, even though she thought she'd get some answers after the Second Titan War. Who was an unclaimed child in the middle of heroes? That sounded like a reasonable question she never got an answer for it. Almost one year after the rebellion, a new threat resurfaced alongside an old prophecy that the gods did everything in their power to avoid. Still, what they needed to learn was that sometimes their choices could lead to unthinkable consequences that could condemn all of them.

Marella Reyes learned how to run long before she learned who she was. Daughter of the sea. Sister to a hero. Bound to a boy who will fall. This is a story about love before prophecy, loyalty after betrayal, and what remains when the gods finally look back.