In the summer of 1862, a group of young artists led by the passionate and talented Edward Radcliffe descends upon Birchwood Manor in rural Oxfordshire. Their plan: to spend a secluded summer month in a haze of inspiration and creativity. But by the time their stay is over, one woman has been shot dead while another has disappeared; a priceless heirloom is missing; and Edward Radcliffe's life is in ruins. Over one hundred and fifty years later, Elodie Winslow, a young archivist in London, uncovers a leather satchel containing two seemingly unrelated items: a sepia photograph of an arresting-looking woman in Victorian clothing, and an artist's sketchbook containing a drawing of a twin-gabled house on the bend of a river.