This book is part of a book series called Spy On History .

This book has been graded for interest at 10-14 years.

There are 96 pages in this book. This book was published 2019 by Workman Publishing .

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 a contributor to the Flight series of anthologies, has been nominated for Shuster and Harvey awards, and has three times been nominated for an Eisner award. Delilah Dirk is his first published graphic novel.