Index Traitoris: Iron Gods     For more than two centuries the Iron Gods have proven themselves a thorn in the side of the Adeptus Terra. They are sullied by overwhelming pride, driven by self-serving ambition, and unburdened by any kind of morality; in short, they are everything that a brotherhood of Astartes should not be.   The Solios Nebula   Although tiny compared to the unimaginable expanse that is the Imperium of Man, the Solios Nebula still covers a vast