A Trade of Blood (Ana and Din Mysteries) .jpg
A Trade of Blood (Ana and Din Mysteries) .jpg

A Trade of Blood (Ana and Din Mysteries) by Robert Jackson Bennett

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INSTANT NEW YORK TIMES BESTSELLER • Detective Ana Dolabra must prove a condemned man's innocence and confront a terrifying magical technology in this fantasy-mystery from the author of The Tainted Cup, winner of the Hugo and World Fantasy awards.

"Wildly imaginative, sometimes pointed, often hair-raising, and very entertaining, a series that has been a hit with everyone I've recommended it to."—Laura Miller, Slate

The heir to one of the Empire's most powerful families sits in jail, accused of murder. His hands are covered in the victim's blood, and he can neither deny his guilt nor explain his actions.

But if the great detective Ana Dolabra cannot save him from the noose, the farming canton of Sapirdad will explode into war, threatening to plunge the whole Empire into starvation and chaos.

As Ana investigates—her assistant Dinios Kol, as ever, acting as her eyes and ears—she fears her task is even more daunting than it seemed. For this murder is just the latest in a deeper, subtler web of death, woven by a mastermind with an ancient weapon at his disposal.

With their customary skill, Ana and Din pursue their adversary through the canton's wild ranges, sprawling ranches, and reeking slaughterhouses. Yet even they are not prepared to learn the horrifying secret behind their opponent's powers.

INSTANT NEW YORK TIMES BESTSELLER • Detective Ana Dolabra must prove a condemned man's innocence and confront a terrifying magical technology in this fantasy-mystery from the author of The Tainted Cup, winner of the Hugo and World Fantasy awards.

"Wildly imaginative, sometimes pointed, often hair-raising, and very entertaining, a series that has been a hit with everyone I've recommended it to."—Laura Miller, Slate

The heir to one of the Empire's most powerful families sits in jail, accused of murder. His hands are covered in the victim's blood, and he can neither deny his guilt nor explain his actions.

But if the great detective Ana Dolabra cannot save him from the noose, the farming canton of Sapirdad will explode into war, threatening to plunge the whole Empire into starvation and chaos.

As Ana investigates—her assistant Dinios Kol, as ever, acting as her eyes and ears—she fears her task is even more daunting than it seemed. For this murder is just the latest in a deeper, subtler web of death, woven by a mastermind with an ancient weapon at his disposal.

With their customary skill, Ana and Din pursue their adversary through the canton's wild ranges, sprawling ranches, and reeking slaughterhouses. Yet even they are not prepared to learn the horrifying secret behind their opponent's powers.

  • Publisher: Del Rey

    Title: A Trade of Blood (Ana and Din Mysteries)

    Author: Robert Jackson Bennett

    On Sale Date: August 4, 2026

    ISBN 13: 9780593723852

    ISBN 10: 0593723856

    Format: Hardcover

    Retail Price: $32.00

    BISAC: Fiction / Fantasy / Paranormal; Fiction / Mystery & Detective

    Page Count: 400 pages

    Dimensions: 6.35 x 1.26 x 9.51 inches

  • Robert Jackson Bennett is the author of the Ana and Din mysteries — The Tainted Cup, winner of the Hugo and World Fantasy Awards, followed by A Drop of Corruption and A Trade of Blood. His other work includes the Founders Trilogy and the Divine Cities trilogy, both Hugo Award finalists for Best Series. He lives in Austin, Texas, with his family.

  • Critics and fellow bestselling authors are calling it imaginative, gripping, and masterful:

    • "Wildly imaginative . . . a series that has been a hit with everyone." —Laura Miller, Slate

    • "The best fantasy series currently being published, maybe the best mystery one too." —John Joseph Adams

    • "Great world-building and a masterfully conceived mystery." —The Guardian

    • "Imperial snoops Ana Dolabra and Dinios Kol are back on the job . . . good merry mayhem." —Kirkus Reviews

This book is for you if

  • You love a fantasy series that plays fair with its mysteries, clue by clue.

  • You're already hooked on Ana and Din and want the conclusion to their trilogy.

  • You enjoy world-building strange enough to feel new but grounded enough to stay legible.

  • You like your detective duos with real banter — think Holmes and Watson, reimagined.

  • You're drawn to fantasy that folds in real questions about land, farming, and power.

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