The Codebreaker's Secret1943. As war in the Pacific rages on, Isabel Cooper and her codebreaker colleagues huddle in the dungeon at Station HYPO in Pearl Harbor, deciphering secrets plucked from the airwaves in a race to bring down the enemy. Isabel has only one wish: to avenge her brothers death. But she soon finds life has other plans when she meets his best friend, a hotshot pilot with secrets of his own. 1965. Fledgling journalist Lu Freitas comes home to Hawaii to cover