Three-Way Bridge, Part 3: Check And Mate

Erasmus has to hide from the popularity chasing him now. On top of being the only living link between the Greek and Roman demigods, he's known worldwide for being the only person to go head-to-head with Gaea on her turf and surviving. Now he's captured by Setne... and fulfilling a prophecy he hasn't even heard! ((Pairings: Nico/OC, Carter/Zia at start, Percabeth at end))