Lord and Lady Sheridan (Charles is now Baron of Somersworth) have taken a house for a few quiet weeks in the late summer of 1897, in the sea-coast village of Rottingdean. Long known as Smugglers' Village, the hamlet sits on a labyrinth of ancient tunnels. When the body of a coast guard is pulled out of the Channel, Kate and Charles suspect that the town is still plying the illicit trades of its past. With the help of Rudyard Kipling (who is just beginning his novel Kim), they discover that something is rotten in Rottingdean...