Harriet the Spy, Double Agent4.6(159 reviews)$1.87Check Best Price & CouponsHarriet the Spy, Double Agent continues the beloved series! Join Harriet M. Welsch on her latest mystery adventure. Perfect for young readers ages 8-12. Discover why it's a bestselling favorite. Get your copy today!harriet-the-spychildrens-booksmystery-booksmiddle-grade-fictionspy-kids-bookslouise-fitzhughdouble-agentbestseller-books
