The Double Agent is a gripping and meticulously researched story of the largest and most important espionage bust in American history.

Follow the journey of William G.

Sebold, a naturalized German-American who infiltrated New York's Nazi underground in the days leading up to World War II.

This thrilling tale reveals the intricate details of Sebold's covert mission and the 16-month investigation that led to the arrest of 33 enemy agents, including a South African adventurer with an exotic accent and a Jewish femme fatale.

Don't miss out on this captivating story of espionage, intrigue, and bravery that will keep you on the edge of your seat until the very end.