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Calth

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Calth is part of Ultramar, the Ultramarines Empire. It is an airless world, and its surface is uninhabitable due to the deadly light of its blue sun. Despite this barren appearance, it is one of the most productive worlds in Ultramar: its population inhabits massive underground cavern-cities, and its orbital shipyards are renowned throughout the Imperium.[1]

The planet is also the birthplace of Ultramarines 4th Company Captain Uriel Ventris and his best friend, Sergeant Pasanius Lysane.[3]

Map Basic Data Planetary Image
px Name: Calth CalthImage.jpg
Segmentum: Ultima Segmentum
Sector: Unknown
Subsector: Ultramar
System: Veridia System[6a]
Population: Unknown
Affiliation: Imperium
Class: Civilized World
Tithe Grade: Unknown


History

Pre-Heresy

The world of Calth had maintained contact with its neighboring systems, including Macragge, allowing it to largely survived the chaos of the Age of Strife.[9] Early in the rise of Roboute Guilliman, Calth became part of the new Ultramar empire. When Guilliman met the Emperor, Calth became part of the greater Imperium. By the end of the Great Crusade, Calth had become one of the three most important worlds of Ultramar alongside Macragge and Armatura.[10]

The Horus Heresy

Main article: Battle of Calth

During the Horus Heresy, Calth was used by Roboute Guilliman as a staging point for his supposed assault on the Veridian System. Horus had ordered the Ultramarines there to divert them from the Siege of Terra. It was there that they were attacked by a force of the Word Bearers legion.[6] Eventually the Ultramarines and other Loyalist forces emerged victorious, but millions of civilians died in the Word Bearers' cataclysmic attack, which permanently stripped away Calth's atmosphere and poisoned the Veridian sun's radiation, making it impossible for any life to survive above ground without shelter. Thereafter, Calth's entire population occupied the vast cavern cities, with the exception of a few heavily shielded starports and surface cities.[5b]

War of the Beast

Main article: War of the Beast

1,500 years later during the War of the Beast, Calth was attacked by an Ork Attack Moon, which was ultimately destroyed by the Ultramarines.[8]

Hive Fleet Behemoth

Main article: Battle for Macragge

Hive Fleet Behemoth's invasion of Calth was spearheaded by Old One Eye, a unique Carnifex with the ability to heal from mortal wounds. Its rampage was finally stopped when a forgotten hero of the Imperium fired a Plasma Pistol through its eye and into its brain. Decades after Behemoth had been driven from Calth, a band of smugglers stumbled across Old One Eye's body frozen intact in the ice-packs of Calth. They thawed it out hoping to get a bounty for the corpse, but Old One Eye's grievous wounds instantly began to heal. It soon awoke and slaughtered the smugglers. A series of Tyranid raids followed. Land conveys were destroyed, hab-domes smashed and entire populations massacred. Lesser Tyranid creatures such as Termagants and Genestealers, also left behind from Behemoth's invasion, were drawn to Old One Eye's presence as a dominant leader. The people of Calth cried out for aid, and they were answered by Scout Sergeant Telion of the Ultramarines. Telion tracked down Old One Eye, but found it difficult to pierce its armoured flanks. As Telion's warriors were cut to pieces by the beast, Telion made a one-in-a-million shot that hit its ruined eye-socket. Old One Eye was overcome with pain and stumbled into a cavernous ravine. Telion led a search for the body, but Old One Eye was never found. There have since been several reports of Carnifexes matching its description causing havoc across Ultramar and beyond.[2]

Invasion of Ultramar

Main article: Invasion of Ultramar

Calth was the location of some of the fiercest fighting of the Invasion of Ultramar by the Chaos warband known as the Bloodborn. The planet was attacked by a Grand Company of the Iron Warriors and a host of other mercenaries, led in person by Warsmith Honsou. Honsou had been "ordered" by the Daemon Prince M'kar to find and destroy the tomb of Remus Ventanus, who had led the defense of Calth during the Heresy. Entombed with Ventanus was the Shard of Erebus, a strange ancient weapon that had the power to destroy M'kar. Honsou's attack failed, but Captain Ventris retrieved the weapon and took it to Talassar, where M'kar was destroyed permanently.[5x]

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See Also

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Uncited