The incredible true story of the librarian, the Nazi spy and Ireland's secret role in turning the tide of World War II When unassuming librarian Richard Hayes, a gifted polymath and cryptographer, was drafted by Irish intelligence services to track the movements of a prolific Nazi spy, Hermann Goertz, Dublin became the unlikely venue for one of the most thrilling episodes in Irish history. In a complex game of cat-and-mouse that would wind its way through the city and its suburbs, Code Breaker reveals how Richard Hayes cracked a code that helped turn the tide of World War II, and uncovers a secret history of the capital that has remained hidden in plain view for the past 70 years.

Ireland's Secret War is a thrilling account of the true extent of Irish-Allied co-operation during World War II. It reveals strategic Nazi intentions for Ireland and the real role of leading government figures of the time, placing Dan Bryan and G2 firmly at the centre of Ireland's battle against Nazi Germany. With the help of over thirty-five hours of previously unpublished audio recordings that were held in storage in northern California for over fifty years, Marc McMenamin reveals the extraordinary unheard history of WWII in Ireland, told from the point of view of the main protagonists. Written with the verve and energy of a thriller, Ireland's Secret War reassesses the legacy of the Irish contribution to the Allied war effort through the voices of those involved at the time.