Fresh out of Cambridge University, the young Mycroft Holmes is already making a name for himself in government, working for the Secretary of State for War. Yet this most British of civil servants has strong ties to the faraway island of Trinidad, the birthplace of his best friend, Cyrus Douglas, a man of African descent, and where his fiancée Georgiana Sutton was raised. Mycroft's comfortable existence is overturned when Douglas receives troubling...