|Map||Basic Data||Planetary Image|
|Class:||Hive World[1a], Death World[1b]|
One-Five-Four Four aka Caldera was originally brought into compliance by Vulkan, Ferrus Manus, and Mortarion during the Great Crusade. After fighting against the Eldar, they unleashed a great purging flame across the world. Disgusted by his own actions against the rebellious Human population, Vulkan pledged that never again would Caldera face such destruction. He briefly returned to the world in search of a passage to Terra during the Horus Heresy..
Vulkan reappeared from his self-imposed exile 1,500 years later to uphold his vow during the War of the Beast, fighting on his own against a massive Ork invasion. Thanks to the efforts of Imperial forces led by Koorland, Caldera was saved from being converted into an Attack Moon.
- 1: Cold Steel (Short Story)
- 2: The Hunt for Vulkan (Novel)
- 3: Promethean Sun (Novella)
- 4: Old Earth (Novel) Ch. 24