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Enigma Alberti
Enigma Alberti is the nom de plume of a secret cadre of authors who are each writing a book in the Spy on History series.
Tony Cliff is the author and artist behind the New York Times bestselling Delilah Dirk graphic novel series.
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By the Author
Victor Dowd and the World War II Ghost Army
Your Mission: Find Victor’s missing sketchbook using spycraft tools to uncover hidden codes! It’s a true story of deception: Meet the top-secret Ghost Army, a…
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Mary Bowser and the Civil War Spy Ring
Your Mission: Find Mary’s secret diary using spycraft stools to uncover hidden codes! It’s a true story of bravery: Mary Bowser was an African American…