r/PercyJacksonfanfic•1 mo. agoSkeithDESharing my Riordanverse & Cthulhu Mythos Crossover Fanfiction: The Sunless Abyss [general]Self Promo:snoo_scream:archiveofourown.org/works/83499836archiveofourown.orgPosted Sep 21, 2026, 6:17 PM UTC30ShareSave