It seems you're asking for a piece of writing or analysis based on the phrase — which likely decodes to "Cain's jawbone VK" (with "39-s" being a common typographic rendering of an apostrophe, as in 's ).
To join the hunt: find a copy of Cain’s Jawbone , ignore the printed page numbers, and prepare to lose your mind — preferably with a VK group to back you up. cain 39-s jawbone vk