In VN’s novel Look at the Harlequins! (1974) Other Books by the Narrator include The Red Top Hat (1934):
Since 1925 I had written and published four novels; by the beginning of 1934 I was on the point of completing my fifth, Krasnyy Tsilindr (The Red Top Hat), the story of a beheading. None of those books exceeded ninety thousand words but my method of choosing and blending them could hardly be called a timesaving expedient. (2.2)