The Hero and the Praetor

Percy had heard the prophecy of seven multiple times and was still in the process of trying to understand it. After two new demigods arrive at camp, he knows it's no coincidence.

But the bigger surprise is when three demigods in purple shirts show up at Camp Half-Blood claiming to be... Roman demigods?

What would happen if Percy and Jason never switched camps?

They have no idea that either one exists, until they have to go on a quest together.

Bonds are formed and broken on this quest, where two enemy powers join together.

Everyone knows what happens in the Heroes of Olympus. Percy and Jason switch camps, Annabeth recovers the Athena Parthenon, Percabeth travels through Tartarus, Leo meets Calypso, and the Seven defeat Gaea. But what if none of that ever happened? What if Hera had never switched the Hero and the Praetor? Everyone knows that the slightest detail in the present tremendously changes the future.