This from a FB warhammer group

Will add more sauce if the mods asked

So, I have been working more and more on the lore for my ‘twin sister AU’, and am just posting this to share it with you guys. Also I made a dedicated sub to it as to avoid any timeline confusion or what not. Feel free to check it out.

Edit: this is NOT a sale or anything, I am just sharing this so if you want to follow up on the au, you can.

So, as those of you here may suspect, I am working on the lore of the Primarchs in their sequence order starting with Lion el’ Johnson and Leona la Jhonson.

From what I have read of the lore, it seems like what would most Likely happen to the first twin pair is,

they would both crashland onto Caliban and spend their first few years fighting and surviving the wildlife, before Luther and the Order would find them and after a bit of a scuffle (that could have hurt one of the Primarch twins, not kill, just hurt) and a fight, take the twins with them back to their fortress monastary. Before they would eventually be raised together under the care of the Order. And one day when the Order had grown big enough, they would launch a crusade against the monsters of Caliban and to unite the world at last.

And this, is where the two twins would diverge in personality and specialty (personally I have yet to figure out which twin would be which), one would end up leading the order from the front lines and become a famous monster slayer and champion on the battlefield, while the other would become more ‘reserved’ and become a master tactian who also had a penchant for secrets and using them…

So, let me know your thoughts on this childhood and upbringing timeline and line of events , does it make sense, any inputs or questions you want to ask, feel free to share them down below.