The seven paladins of the Saint of Steel were holy warriors of unsurpassed skill, their berserker rage channeled through divine grace. When their god dies suddenly, six survive in a broken state — no longer fully sane, their holy fury ungoverned, their purpose gone. Each book follows a different paladin finding their way back to the living world through an unlikely romantic partnership, while a broader mystery about the god's death and a shadowy antagonist slowly unfolds.

Each book has a different paladin protagonist — Stephen, Istvhan, Galen, and Shane — all sharing the same tragic backstory of divine loss and a tendency toward martyrdom. Their heroines are equally vivid: a perfumer, a secretive nun, a lich-doctor, a spy. What unifies the casts is Kingfisher's gift for writing intelligent, competent people who are genuinely bad at letting themselves be loved.

Across four books, T. Kingfisher weaves together a series of standalone-adjacent romantic adventures set in the same intricate world, each featuring a different paladin and a carefully chosen heroine. The overarching plot — involving a demon-led cult, an artificer's world-changing invention, and court intrigue — builds gradually beneath the romances. The tone is distinctively Kingfisher: warm, witty, occasionally horrifying, and always deeply human.