Mark of Calth
Laurie Goulding
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
AnthologyHorus HeresyHorus Heresyoptional
001.M31 - 014.M31
range date, low confidence
Imperium / chapter
Ultramarines
The exemplars of the Codex Astartes, masters of the realm of Ultramar. Their primarch Roboute Guilliman wrote the doctrine most Chapters still follow and now leads the Imperium's defence.
- Origin
- Late M29
- Founding
- First Founding (XIII Legion)
- Gene-seed
- Roboute Guilliman
- Homeworld
- Macragge
- Status
- Active — Active
- Date quality
- era / medium
Lineage
Ultramarines Books
Original summaries and chronology labels generated from the same catalog powering the atlas.
Battle for the Abyss
Ben Counter
A compact void-war Heresy entry built around an Imperial pursuit of a massive Word Bearers threat moving toward Ultramar.
NovelHorus HeresyHorus Heresyoptional
007.M31 - 007.M31
exact date, high confidence
Know No Fear
Dan Abnett
A decisive Ultramarines and Word Bearers Heresy novel that turns a planned campaign into a brutal lesson in betrayal.
NovelHorus HeresyHorus Heresyessential
007.M31 - 007.M31
exact date, high confidence
Courage and Honour
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 999.M41
era date, low confidence
Dead Sky Black Sun
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 999.M41
era date, low confidence
Nightbringer
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 999.M41
era date, low confidence
The Chapter's Due
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 999.M41
era date, low confidence
The Killing Ground
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 999.M41
era date, low confidence
The Swords of Calth
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 099.M42
range date, low confidence
Warriors of Ultramar
Graham McNeill
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
NovelSpace MarinesUltramarinesoptional
900.M41 - 999.M41
era date, low confidence
His Will
Guy Haley
Discovery candidate imported from public reference lists; spoiler-free original summary pending review.
Short StoryEra IndomitusDark Imperiumoptional
999.M41 - 999.M41
approximate date, medium confidence
Indomitus
Gav Thorpe
A modern-era novel that puts Space Marines and Necrons into the Indomitus Crusade frame, giving the map another early-M42 anchor.
NovelEra IndomitusAge of the Dark Imperiummajor
010.M42 - 010.M42
approximate date, medium confidence
Dark Imperium
Guy Haley
A central modern-era novel about Guilliman's returned Imperium facing strategic, political, and daemonic pressure in Ultramar.
NovelEra IndomitusDark Imperiumessential
012.M42 - 012.M42
approximate date, medium confidence
Godblight
Guy Haley
The Dark Imperium trilogy closes with the Plague Wars pushing into questions of faith, power, and what the returned primarch can actually fix.
NovelEra IndomitusDark Imperiummajor
012.M42 - 012.M42
approximate date, medium confidence
Plague War
Guy Haley
The Plague Wars escalate as Ultramar becomes a strategic and ideological test case for the revived Imperial order.
NovelEra IndomitusDark Imperiummajor
012.M42 - 012.M42
approximate date, medium confidence