In 1939, just as the clouds of war are gathering, Richard Halifax—boys' adventure writer of manly bravado and the breeziest of prose styles—vanishes in the Pacific. Halifax was attempting to sail a Chinese junk from Hong Kong to San Francisco as part of the World’s Fair festivities on Treasure Island. But while his disappearance upends the lives of those left in his wake back home, both his machinations and his letters to his young readers live on. Hildegard Rauch, an émigré painter and the daughter of Germany’s greatest living writer in exile, finds her twin brother in a coma after an attempted suicide. He left a mysterious note that sends her on a search for the truth about her brother’s relationship with Richard Halifax and the dangerous secret he entrusted to the writer before his voyage. Simon Faulk, a British intelligence officer, has been assigned to ferret out Nazi spies in California. He learns of the arrival of a mysterious American agent from across the Pacific, part of a jo