Percy, abandoned by almost all of the other campers, abandoned by the Olympians, abandoned by even Annabeth in favor of his new half-brother is offered a deal to go back and change it all as a child of darkness instead of a son of the sea.

Nico has spent the past three years trying to get as far away as he can from anything that might remind him of Percy Jackson. But an unexpected tragedy sends a desperate Percy after the only person he can think to turn to for help. What Percy wants Nico to do is impossible and they both know it. Nico/Percy