"The illustrations... are stellar...a volume that young history buffs will find absorbing. A visually exciting introduction to a famous spy case and a name synonymous with 'traitor.''  -- Kirkus Reviews

"In short, dramatic scenes, this title by the author of Revolutionary Friends...presents the story of two notorious Revolutionary War soldiers. The straightforward narrative alternates between the viewpoints of British major John André and American major General Benedict Arnold...At each turn along the road to treason, Castrovilla shines a light on the motivations and conflicted emotions of André and Arnold...The ink and watercolor illustrations set the scene in careful detail...(and) call to mind old-fashioned woodblock prints...Future historians will enjoy this psychological chronicle of how Arnold plotted with André to betray his fellow patriots." – School Library Journal

"No name in the annals of U.S. history is more synonymous with treachery and betrayal than Benedict Arnold. This in-depth look at Arnold's personality, rooted heavily in primary source materials, creates a far more complex portrait than the one provided by most textbooks...(with) countless opportunities for critical thinking and discussion. With colorful illustrations and insightful observations, books like this one make the names recorded in history much more human." - Booklist

"O'Brien joins Castrovilla for this companion to Revolutionary Friends...(which) explores the relationship between a less reputable Revolutionary duo: British major John André and West Point commander Benedict Arnold. The third-person narration switches between the men, frequently imagining their thoughts and nervousness...O'Brien's squirrely ink lines and watercolor washes bring a certain playfulness to the 18th-century setting, despite the dire subject and high stakes."  – Publishers Weekly