On the night of the fourteenth Thornton Lyne is murdered by some person or persons unknown, presumably in the flat of Odette Rider, his former cashier, residing at Carrymore Mansions.

Bloodstains are found upon the floor, and there is other evidence, such as the discovery of the pistol and the spent bullet, which emphasises the accuracy of that conclusion.

Nobody sees Mr.Lyne come into the flat or go out.

He is found in Hyde Park the next morning without his coat or vest, a lady's silk night-dress, identified as Odette Rider's, wrapped tightly round his breast, and two of Odette Rider's handkerchiefs are found over the wound.
Upon his body are a number of daffodils, and his car, containing his coat, vest and boots, is found by the side of the road a hundred yards away.

Have I got it right ?" Whiteside nodded.
"Whatever else is at fault," he smiled, "your memory is unchallengeable." "A search of the bedroom in which the crime was committed reveals a bloodstained thumb-print on the white bureau, and a suit-case, identified as Odette Rider's, half-packed upon the bed.