SI sea God

Summary: SI trap in an endless void is summoned by a ROB with an offer. One of the endless universes is being destroyed. And this one is his birth dimension. So ROB offers SI the chance to be Reborn as Poseidon in the world of Percy Jackson. Plus 3 Gifts. Crossover: Magnus Chase, The Blood of Olympus, The Kane Chronicles, Buffy the Vampire Slayer Pov: Of Percy Jackson and SI