I love any AU featuring the Athenides, I love reincarnations in the past, but you know what we're missing?
Poseidon teenage dad.
We need Percy/Perse to transfer either almost immediately after the Kronids leave Kronos's stomach, but before he's defeated, or, even better, have Poseidon sire Percy/Perse before he leaves the stomach.
We don't know how long the gaps were between all the Big Six, do we? It would be funny if the second generation of gods started appearing even before Zeus was born.
(Sorry for any errors, it's late at night and I'm just having a revelation.)
It occurred to me that Percy/Perse is the son/daughter of Hera and Poseidon, but to the general public, i.e., everyone not in Kronos's stomach, Percy/Perse is the son/daughter of Demeter and Poseidon. The Kronids, with the exception of Zeus, who is unaware, decided to conceal half of Percy/Perse's parentage, because of a prophecy Poseidon had.














