From the author of Ghost Wall, a powerful enquiry into the workings of the human mind and heart, set in the 1880s between Japan and England.

In this companion novel to Bodies of Light, Ally's husband Tom leaves, only weeks into their marriage, to build lighthouses in Japan. Ally, one of Britain's first female doctors, takes work at an asylum in Truro. With only letters sent across the ocean to sustain them, and with Ally now battling her old demons alone, will their marriage survive?