An "outstanding" mystery in the series starring a police detective in a British coastal city (Booklist, starred review).

When ex-con Daryl Woodley is found dead on the marshes bordering Langstone Harbor, the Intelligence Directorate believe his murder is linked to a big-time crook currently serving time in prison. Detective Inspector Horton is not so sure—and is thrown into a complex and frustrating investigation when another body is found on a rotting boat being salvaged in Portsmouth Harbor.
As the pressure to solve the case increases, Horton receives a chilling personal message. Time, it seems, is also running out for him . . .

"A treat for fans of the puzzle-box mystery." —Kirkus Reviews