As someone who owns some old Dennis Wheatley "crime dossiers", Unbound's rerelease of Torquemada's puzzle novel Cain's Jawbone looks fascinating.
https://unbound.com/books/cains-jawbone
@Jonathan_K Jonathan - I'm curious - do you have the original dossier versions, or the bound reprints? I've only seen one set of the originals... (thanks for the link though!)
@tomabba Tom, I've never even SEEN any of the original published editions of the Wheatley/Links books, let alone own one sadly. I wonder how many survived intact.
The other direction here is BS Johnson's wonderful The Unfortunates, his 60s "book in a box".
@Jonathan_K John Clute has a full set of the originals. Because John Clute would (@harkaway). I have photos somewhere, will post when I find them...
@Jonathan_K @harkaway Finally (!) remembered to dig this out. Sorry for the delay...
@tomabba @harkaway
Photos, yes! The other possibility, of course, is that none of those books, ever, was really completed, few even properly opened.