Only War: The Razgriz
Serafina was, like many of her brothers and sisters and cousins and parents, a tall, lanky, blue-skinned ‘sanctioned mutant’ Voidborn. The Imperium of Man had long since understood the effects of living in space and what it did to the body in general terms. These ‘mutants’ were of great use to the far-flung Imperium – and tended to adapt to the environments they lived and worked in.
However, not all mutations are sanctioned. A mutation of the soul, a connection to the Warp tore her from what would have been a full life of breaking larger rocks into smaller rocks in space to find deposits of different rocks to move around.
Instead, she was taken to the Black Ships.