The Sign in the Sky). Quin is not there, but Eastney is, and the two men talk – the younger man regaling Satterthwaite with tales of working in the testing and manufacture of poison gas during the war. Leaving the restaurant, Satterthwaite is still uneasy. He buys a paper for that evening's radio programmes and realises that Gillian West is in great danger. He rushes to her flat and drags her out before the tenor's voice reaches a peak during a performance of "The Shepherd's Song". A stray cat goes through the door to the flat and is found dead – killed by the gasses freed from the glass ball when it shattered as a result of the tenor singing. Satterthwaite meets Eastney who is pacing on the Chelsea Embankment and tells him that he and Gillian removed a dead cat from the flat, i.e. that Eastney's plan failed. The two men part, and a few minutes later a policeman asks Satterthwaite if he also heard what seemed like the sound of a large splash. The police officer says he figures it is another person committing suicide. The Dead Harlequin Mr Satterthwaite attends a showing at an art gallery by the rising young artist Frank Bristow. There he sees a painting called "The Dead Harlequin" which portrays a dead figure on a floor, and the same figure looking in through an open window at his own corpse. The man portrayed is Mr Harley Quin and the room shown is the Terrace Room at Charnley, a house owned by Lord Charnley which Satterthwaite has visited. He buys the picture and meets the artist, whom he invites for dinner that night at his house. The artist joins Satterthwaite and Colonel Monkton who was at Charnley the night fourteen years earlier when the previous Lord Charnley committed suicide. The house has a ghostly history, with the spectre of Charles I walking headless on the terrace and a weeping lady with a silver ewer seen whenever there is a tragedy in the family. The last death occurred at a fancy dress ball to celebrate the return from honeymoon of Lord Charnley and his new bride. Colonel Monkton was one of several people who stood at the top of a flight of stairs and saw Lord Charnley pass below. A woman called out to him but he walked on as if in a daze. He