Changes

Ever since the [[Burning of Prospero]] , the Thousand Sons and the Space Wolves wished the other's destruction. During [[M32]], the then-[[Great Wolf]] of the Space Wolves, [[Harek Ironhelm]], grew particularly obsessed with finding and slaying Magnus the Red and his Thousand Sons. He ordered a great Hunt for the traitors and eventually located them on the world of [[Gangava]], apparently in the midst of a build-up of their strength through mysterious means. Ironhelm ordered the immediate mobilisation of almost the entire [[Rout]] in response, intending to fall upon Gangava and finally eradicate the Thousand Sons. Left behind to ensure the safety of Fenris were one single [[Great Company]] - the Twelfth - and the staff, inhabitants and defence forces of the [[Fang]] itself.^1a

However, Harek Ironhelm had been decieved. Magnus, aware of the Great Wolf's obsession, had played him for a fool. The situation on Gangava was a feint, with the bulk of the Thousand Sons prepared to descend upon Fenris and level the Fang itself, ostensibly in retaliation for the Burning of Prospero. The real reason Magnus had conceived of this plan however, was not to simply strike at the Space Wolves out of revenge - although most of the legion were allowed lead to believe this - but to prevent the Space Wolves from creating [[Successor Chapter]]s. For at this time, the Space Wolves' [[Wolf Priest]] [[Thrar Hraldir]] had come closer than any other since the time of the [[Emperor]] himself at understanding the '''Canis Helix''' and how to reproduce the [[gene-seed]] of the Space Wolves without any of its inherent flaws. If Hraldir was successful in his goal, the ''Sons of Russ'' plan - in which the [[Eye of Terror]] would be ringed with flaw-free Space Wolf Successor Chapters - could be reactivated (having been shelved with the disbandment of the [[Wolf Brothers]] many years previously); something Magnus the Red had a great deal of interest in preventing.^1b