Space Wolf (Space Wolf #1)

After being revived from a savage death on the battlefield, Ragnar is recruited into the fearsome Space Wolves Chapter. He is then thrown into a galactic war against the dark forces of Chaos. However, the implanting of the Canis Helix unleashes his primal instincts and Ragnar must fight to control the beast within him. Read it because
It's a Black Library classic, and the start of a six-book series that delves into the early life of Ragnar Blackmane. Discover his past, his pack and the deeds that led him to glory and fame.