Susan Spann

Mystery Author

The latest entry in the thrilling 16th century Japanese mystery series, featuring ninja detective Hiro Hattori and Portuguese Jesuit Father Mateo!

“Spann once more shows herself as a master storyteller.”–CARA BLACK, New York Times bestselling author of the Aimée Leduc Investigations.

Available Now!

Betrayal at Iga

Autumn, 1565: After fleeing Kyoto, master ninja Hiro Hattori and Portuguese Jesuit Father Mateo take refuge with Hiro’s ninja clan in the mountains of Iga province.

But when an ambassador from the rival Koga clan is murdered during peace negotiations, Hiro and Father Mateo must find the killer in time to prevent a war between the ninja clans.

With every suspect a trained assassin, and the evidence incriminating not only Hiro’s commander, the infamous ninja Hattori Hanzo, but also Hiro’s mother and his former lover, the detectives must struggle to find the truth in a village where deceit is a cultivated art. As tensions rise, the killer strikes again, and Hiro finds himself forced to choose between his family and his honor.

Click to Learn More!

  • What Did Ninjas Eat?

    While researching my newest Hiro Hattori mystery, BETRAYAL AT IGA, I needed to learn a little more about 16th century Japanese cuisine.

    So … what did ninjas eat?

    Click through to my guest post on the No More Grumpy Bookseller blog to find out how I answered that all-important question. As a bonus, the blog is hosting a giveaway for a free copy of the novel – as long as you enter before July 30, 2017!

    (And I promise, unlike some clickbait headlines, I really do answer the question – without ads.)

    Shojin Ryori Dinner for Two Ekoin (1)