Harriet the Spy, Double Agent - Gold, Maya, and Fitzhugh, Louise (Creator)

Being a spy has always been rather solitary, so Harriet is glad to have a new friend and spy partner. Then Harriet realizes that Annie reveals very little about herself. As Harriet unravels Annie's mystery, she comes to appreciate the many different kinds of love there are.

Harriet the Spy, Double Agent 2005, Delacorte Press Books for Young Readers

ISBN-13: 9780385327879