Board Thread:Warhammer 40k General Discussion/@comment-4851119-20140118095944/@comment-3258762-20140207121739

Callummacdonald79 wrote: on the theme of if omegon was actually one of the 'missing' primarchs...

after emps completed the primarch project and had 20 newborn (or newly decanted) infants, maybe then he divined that 2 of those infants shared one warp signature. after which he placed them in the same tank just before the warp gods spirited them away.

then when he came to make the legions maybe he thought that it would be fine to make 2 seperate legions from the genome of both alpharius and omegon, but due to them sharing the same soul this may have had the effect of making omegons legion unstable/unusable, and thus expunged.

this is just a pretty wild hypothesis mind you, and i'm aware there's almost no chance of such but...possible? enter refuting evidence below :)

If that would have been so, there would not have been 20 gestation capsules in the Emperor's hidden lab, it would have been 19, as Horus noticed (when looking back in time during the Davin incident) that in the XX tank there seemed to be two things floating around instead of one.