Gunmetal Olympus / Hades Calculus

Official home of Gunmetal Olympus, a series of lesbian books set in a futuristic world of mecha and cyberpunk cities, inspired by Greek mythology, by Maria Ying.

Reading Guide

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The Story So Far

We begin our story on Olympus, an inhospitable and barren planet full of hostile megafauna called the colossi, who hunger for only one thing—destroying Elysium, the city sheltered by a habitation dome, home to millions and ruled by the Pantheon of the Twelve. All is in stalemate: the colossi cannot breach the dome, and the Twelve—with their great war machines, the eidolons—cannot eradicate the colossi.

Persephone, a high-spec cyborg created by Demeter, brutally breaks free from her mother’s estate and seeks the patronage of Hades. After a council of the gods, it is determined that Persephone must negotiate with Demeter to permit her to remain with Hades; she does so by brokering a marriage alliance that will secure the freedom of her sister Khrysothemis, and wed Khrysothemis to Dionysus’s champion Methe.

While she forges a bond with both Hades and Hephaestus, Persephone trains to become the pilot of Hades’s eidolon, Styx. Not long after, she’s entered into the Panathenaic; the tournament is interrupted when colossi attack the wall that protects Elysium. Persephone sorties with Hippolyta and Herakles, the respective champions of Ares and Zeus. They are victorious, but the colossi demonstrate that they are rapidly evolving. Demeter reveals to the rest of the Pantheon that she created Persephone to access and infiltrate the colossus network.

To equip Styx with better armaments, Hephaestus creates swarm-nodes, highly mobile weapon sub-units that act as both defense and offense, but which requires Persephone to further train to deploy. In the middle of this, a gala is held by Aphrodite to celebrate the pilots; there Persephone is poisoned, and her sister Khrysothemis sacrifices herself to heal Persephone through a method that drives Persephone close to madness.

But Persephone doesn’t have long to recover, as the greater colossus the Harvester is approaching Elysium. She sorties, once more, with Herakles and Hippolyta. During the battle, Herakles and Hippolyta experience a scrambling of IFF codes; they attack each other. Persephone, meanwhile, finds that she can now deploy Styx’s swarm-nodes perfectly… with the help of Khrysothemis, who’s now assimilated within Persephone. 

They survive this fight with the help of Methe and several other pilots, but Herakles has been slain and carried away by the Harvester, and Keraunios is destroyed, sending Zeus into a coma.

Persephone dreams of her sister asking her for a boon, and wakes up covered in blood. She and Methe go to Demeter’s estate to find that everything is in ruins and all the clones there slaughtered. Demeter herself lies bleeding, and she reveals to Persephone the truth behind Persephone’s creation—and with an imperative built deep into Persephone, Demeter compels Persephone to devour her.

Which brings us to now…