The Siege of Terra has reached it's bloody conclusion, if humanity is to survive it must claw its way out of the ashes. The Era of Ruin has come. In the ashes of Terra, the wounds of the Horus Heresy fester. While the conflict between Horus and the Emperor of Mankind has reached its bloody end, humanity must now navigate the consequences. If anyone is to survive this Era of Ruin, they must claw their way through the remnants of betrayal, carnage and destruction. The scars of the Siege run deep in the wake of battles like that of Nathaniel Garro, forced to face his father, the monstrous traitor primarch Mortarion, during the height of the conflict.
Some of Black Library's most beloved authors explore the death throes and immediate aftermath of the Siege of Terra, including Dan Abnett, Aaron Dembski-Bowden, Guy Haley and more. This omnibus contains the novella
Garro: Knight of Grey by James Swallow and the
Era of Ruin anthology.
Author: James Swallow,John French,Nick Kyme
Publisher: Games Workshop
Published: 07/28/2026
Pages: 384
Binding Type: Paperback
Weight: 0.44lbs
Size: 0.30h x 4.10w x 1.10d
ISBN: 9781836090212
About the AuthorJames Swallow is the author of the Horus Heresy novels
Fear to Tread and
Nemesis, which both reached the
New York Times bestseller lists. Also for the Horus Heresy, he has written the Siege of Terra novella
Garro: Knight of Grey, the novels
The Flight of the Eisenstein and
The Buried Dagger, and a series of audio dramas featuring the character Nathaniel Garro, the prose versions of which have now been collected into the anthology
Garro. For Warhammer 40,000, he is best known for his four Blood Angels novels, the audio drama
Heart of Rage, and his two Sisters of Battle novels. His short fiction has appeared in
Legends of the Space Marines and
Tales of Heresy. John French is the author of several Horus Heresy stories including the novels
The Solar War, Mortis, Praetorian of Dorn, Tallarn, Slaves to Darkness and
Sigismund: The Eternal Crusader, the novella
The Crimson Fist, and the audio dramas
Dark Compliance, Templar and
Warmaster. For Warhammer 40,000 he has written
Resurrection, Incarnation and
Divination for The Horusian Wars and three tie-in audio dramas - the Scribe Award-winning
Agent of the Throne: Blood and Lies, as well as
Agent of the Throne: Truth and Dreams and
Agent of the Throne: Ashes and Oaths. John has also written the Ahriman series, the Age of Sigmar novels
The Hollow King and
The Dead Kingdom and many short stories.
Nick Kyme is the author of many Horus Heresy novels, novellas and audio dramas, including
Old Earth, Promethean Sun and
Nightfane. His novella
Feat of Iron was a
New York Times bestseller in the Horus Heresy collection
The Primarchs. For Warhammer 40,000, Nick has written
Volpone Glory and the Dawn of Fire novel
The Iron Kingdom. He is also well known for his popular Salamanders series and the Cato Sicarius novels
Damnos and
Knights of Macragge. His work for Age of Sigmar includes the short story 'Borne by the Storm', included in the novel
War Storm, and the audio drama
The Imprecations of Daemons. He has also written the Warhammer Horror novel
Sepulturum. He lives and works in Nottingham.
Dan Abnett has written over fifty novels, including the acclaimed Gaunt's Ghosts series and the Ravenor, Eisenhorn and Bequin books. His work for the Horus Heresy includes the first book in the series,
Horus Rising, and the three-volume-long conclusion,
The End and the Death. He also wrote several novels in between:
Legion, The Unremembered Empire, Know No Fear, Prospero Burns and
Saturnine. He scripted
Macragge's Honour, the first Horus Heresy graphic novel, as well as numerous Black Library audio dramas. He recently penned the Warhammer 40,000 novel
HIVE, as well as
Interceptor City, the eagerly awaited sequel to fan-favourite
Double Eagle. Dan lives and works in Maidstone, Kent.
Gav Thorpe's long and prolific career with Black Library has seen him write across the depth and breadth of the Warhammer universes. Author of the Horus Heresy novels
The First Wall, Deliverance Lost, Angels of Caliban, Corax, and novella
The Lion, he has also written the titles
Luther: First of the Fallen and
Rogal Dorn: The Emperor's Crusader. His Warhammer 40,000 work includes
Indomitus, the Dawn of Fire novel
The Wolftime, and
The High Kâhl's Oath, amongst many others. For Age of Sigmar, Gav wrote the novel
The Red Feast, and in 2017 he won the David Gemmell Legend Award for his novel
Warbeast. He lives and works in Nottingham.
Guy Haley's work for Black Library spans the depth and breadth of the Warhammer universes. He is the author of several Horus Heresy novels, including
The Lost and the Damned, Titandeath, Wolfsbane and three titles in the Primarchs series. He has also written many Warhammer 40,000 books, including
Dawn of Fire: Avenging Son, the Dark Imperium trilogy, and the Belisarius Cawl novels
The Great Work, Genefather and
Archmagos. For Age of Sigmar he has penned the Drekki Flynt novels
The Arkanaut's Oath and
The Ghosts of Barak-Minoz as well as many other stories. He lives in Yorkshire with his wife and son.
Chris Wraight is the author of the Horus Heresy novels
Ashes of the Imperium, Warhawk, Scars and
The Path of Heaven, the Primarchs novels
Leman Russ: The Great Wolf and
Jaghatai Khan: Warhawk of Chogoris, as well as several novellas and the audio drama
The Sigillite. For Warhammer 40,000 he has written the Space Wolves books
Blood of Asaheim, Stormcaller and
The Helwinter Gate, as well as the Vaults of Terra and Watchers of the Throne series,
The Lords of Silence and the Dawn of Fire novel
Sea of Souls. Additionally, he has many Warhammer Fantasy novels to his name, and the Warhammer Crime novel
Bloodlines. Chris lives and works in Bradford-on-Avon, in south-west England.
Aaron Dembski-Bowden is the
New York Times bestselling author of the Horus Heresy novels
Echoes of Eternity, The Master of Mankind, Betrayer and
The First Heretic, as well as the novellas
Aurelian and
Prince of Crows and the audio drama
Butcher's Nails, for the same series. He has also written the Warhammer 40,000 novels
Spear of the Emperor and
Ragnar Blackmane, the popular Night Lords series, the Space Marine Battles book
Armageddon, the novels
The Talon of Horus and
Black Legion, the Grey Knights novel
The Emperor's Gift and numerous short stories. He lives and works in Northern Ireland.