The young TACITAN takes drastic action as the secret hidden on Nova Thulium's moon comes to light! In the 41st millennium, heretics invade the homeworld of MARNEUS CALGAR - and only he and his ULTRAMARINES can stop them! But will Calgar's perilous battle plan save the Imperium or doom it to the corruption of chaos?

• Editor : Mark Basso
• Letterer : Clayton Cowles

Variants cover

Warhammer 40,000: Marneus Calgar (2020) #3 (Variant)