The sequel to 2021's critically acclaimed Black Drop, charting the adventures of reluctant spy Laurence Jago at sea.

** AN INSTANT TIMES BESTSELLER ** ** A FINANCIAL TIMES BOOK OF THE YEAR ** ** SHORTLISTED FOR THE CWA HISTORICAL DAGGER AWARD ** ** LONGLISTED FOR THE THEAKSTON OLD PECULIAR CRIME NOVEL AWARD ** 'A TRULY GRIPPING READ' - GUARDIAN 'FABULOUS, A DELIGHT' - S.G. MACLEAN 'A FINE ADVENTURE REMINISCENT OF PATRICK O'BRIAN' - SUNDAY TIMES This is the secret report of Laurence Jago. Unwilling spy. Reluctant sailor. Accidental detective. New Year 1795, and Laurence Jago is aboard the Tankerville mail ship, en route to Philadelphia. Laurence is travelling undercover, supposedly as a journalist's assistant. But his real mission is to protect a civil servant, en route to Congress with a vital treaty that will stop the Americans from joining the French in their war against Britain. When the civil servant meets an unfortunate - and apparently accidental - end, the treaty disappears, and Laurence realises that only he can keep the Americans out of the war. Trapped on the ship with a strange assortment of travellers including two penniless French aristocrats, an Irish actress and a dancing bear, Laurence must hunt down both the lost treaty and the murderer, before he has a tragic 'accident' himself... The new page-turning historical mystery from the author of BLACK DROP, a 2021 TIMES Book of the Year. Perfect for readers of Andrew Taylor, Laura Shepherd-Robinson and S.J. Parris.

"A satisfying nautical mystery" - The Times

"Will have you hooked from start to finish" - Metro

"Intrigue, tension, memorable characters and shipboard life depicted in all its reeking authenticity add up to a truly gripping read" - Guardian

"A fine adventure reminiscent of the Patrick O'Brian novels" - Sunday Times