I had a thought of a book that will never be written, that would be pure heresy, blasphemes and would destroy the 40K Imperialim, and it's fan base.
Ciaphas Cain and the tasks of the twelve Primarchs
Amberly has multiple breakdowns in the comments and refuses to believe it happened. Cain
and Jurgan travel shenanigans through space and time to meet 12 different Primarch's from both pre and post heresy who each give Cain an impossible task(which he of course is able to complete, much like Hercules did)
The last Primarch is the most surprising. I get tears in my eyes as I thought of it.
