Historian and author Jayne Triber draws on her research and experiences working at Fort Independence on Castle Island in South Boston and at the Boston Harbor Islands national park area to review the dramatic, colorful, and military history of these hidden treasures. For over 350 years, the Boston Harbor Islands have played an important role in the defense of Boston, Massachusetts and the United States. From the colonial period to the Cold War, the Harbor Islands have been the site of fortifications, training camps, prisoner-of-war camps, and Nike missile installations.

Jayne E. Triber, author of "A True Republican: The Life of Paul Revere" (University of Massachusetts Press, 1998), is an independent historian and public speaker who received a Ph.D from Brown University. She began her career as a historical interpreter at the Paul Revere House and later worked as a state and National Park Service ranger in Massachusetts and as a college instructor.