Many are the sagas of Leman Russ, Lord of Winter and War, most fearsome of the Emperor's primarch sons. At the height of the Great Crusade, his Space Wolves fight to bring the rebel world of Dulan to compliance. Enraged by the defiance of the tyrant there Russ has pledged to strike him down personally - but his brother Lion El'Johnson of the Dark Angels advises more caution. With the might of two Legions arrayed against Dulan, tensions nevertheless run high, and the rivalry between the Wolf and the Lion threatens to engulf them all..

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It's one of the definitive events from Warhammer 40,000 lore, the origins of the ten-millennium-long enmity between the Space Wolves and the Dark Angels. It's a tale that fans have been waiting to read for decades… and now you can.