The Inquisition is Humanity’s last, merciless safeguard. Operating in secrecy and answering only to the Emperor, its agents will pay any price to preserve the Imperium – even if that cost is measured in lives, cities, or worlds.

This omnibus collection brings together the complete Vaults of Terra saga, following the investigations of Inquisitor Erasmus Crowl as he uncovers conspiracies festering at the very heart of the Imperium.

The Story

The Carrion Throne
On Holy Terra itself, Ordo Hereticus Inquisitor Erasmus Crowl stands watch over the Throneworld. When signs of corruption surface in the Imperium’s most sacred seat of power, Crowl is drawn into a conspiracy that proves even Terra is not beyond the reach of humanity’s enemies.

The Hollow Mountain
Crowl presses deeper into forbidden territory, chasing a plot of terrifying scope. Alongside his acolyte Spinoza, he follows a trail of secrets through the shadowed institutions of Terra, knowing every step brings him closer to destruction – but duty leaves him no choice.

The Dark City
The Great Rift tears reality apart and the Astronomican fails, plunging Terra into chaos. Amid the turmoil, Inquisitor Crowl vanishes, taking with him the answers to the mystery that has consumed him – and leaving the fate of the Throneworld hanging by a thread.

Contents

• The Carrion Throne (novel)

• The Hollow Mountain (novel)

• The Dark City (novel)

• Argent (short story)

• Sanguine (short story)

• Okira (short story)

Written by Chris Wraight.

Why Read This Collection?

• A complete, chronological Inquisition-focused saga

• Explores the hidden machinery of power on Terra

• Deep political intrigue, investigation, and grim Imperial justice

• Essential reading for fans of the Inquisition and darker Warhammer 40,000 lore

• Perfect for readers who prefer suspense, mystery, and atmosphere over frontline warfare

If you want to see the Imperium at its most secretive, paranoid, and morally uncompromising, Vaults of Terra is one of Black Library’s strongest and most gripping series – a must-have Warhammer 40,000 omnibus.