Content levels
Trigger warnings
Positive tags
Heroine archetypes
Protagonist archetypes
Tropes
Synopsis
Decadent cyberpunk cities. Greek mythology and giant mechs. Hades and Persephone as never seen before. For generations, colossi have besieged the gates of Elysium. Each day, the city’s fall looms closer. As one of Elysium’s rulers, Hades has long sought to break this stalemate. In Persephone, a cyborg tailor-made to kill, she finds the key to victory and the perfect pilot for her war machine. She will acquire Persephone at any cost. Born to wield violence and with the bloodthirst to match, Persephone chafes under her mother’s control. At the first opportunity, she brutally breaks free and seeks sanctuary with the unlikeliest of patrons: the Lord of the Machine Dead, the Master of the Underworld. All Hades and Persephone have to do to realize their goals is to navigate the city’s treacherous politics—and survive the coming war.
Tags
The Hades Calculus: content & age rating
Intended for adult readers (18+).
Contains graphic violence, mature themes of control and abuse, cybernetic body horror, and a lesbian romance with moderate sexual content. War and mech combat are central to the plot.
What to know going in
This book has graphic violence, moderate sexual content, and strong language. Content notes include domestic violence, graphic violence, emotional abuse, murder, and captivity (see the full list above).
Who'll love this
Adult readers will love this dark Greek mythology retelling with giant mechs, sapphic romance, and high-stakes political intrigue.