Ambrose Lavendale,Diplomat

Set against the backdrop of World War I, the narrative follows Ambrose Lavendale, a young English-American ambassador who leaves his post to become a secret agent in London. He partners with Suzanne de Frayne, a French operative, as they uncover plots involving German spies and a scientist developing a deadly gas bomb. Their mission intertwines with themes of espionage, romance, and the impact of submarine warfare on American ships, culminating in a series of thrilling episodes that keep readers engaged until the very end.