As the nineteenth century draws to a close, a grateful nation prepares to celebrate its sovereign's long reign. Meanwhile, a traitor at the heart of the establishment is working in the interests of a foreign power to shake the very foundations of the British Empire and Verity Mallard and private detective George Benson soon find themselves enmeshed in the machinations of hostile forces. While Irish revolutionaries and agents of Imperial Germany pursue twin plots to strike at the pinnacle of the British state, Verity and George team up once again in a race against time to protect the realm. The thrilling third instalment of the Mallard Melodramas.