A legendary Space Marine Chapter Master of the Warhammer 40,000 universe, Marneus Calgar leads his elite Ultramarines against humanity’s greatest threats and has had his dark past shrouded in mystery…until now. This October, writer Kieron Gillen and artist Jacen Burrows will unite to tell Marneus Calgar’s never-before-told origin story – from his beginnings on the world of Nova Thulium, his