"The best yet in [Robertson's] late-18th-century historical series." -- Publishers Weekly (starred review) In the fourth installment of Imogen Robertson's acclaimed historical suspense series, Mrs. Harriet Westerman and Gabriel Crowther depart England for the Duchy of Maulberg on a desperate mission to save a man accused of murder. Shrove Tuesday, 1784. As Germany's elite dance at a masked ball, the beautiful Lady Martesen is murdered. Daniel Clode,...