Klarn
Klarn was a Mechanicum Magos who was part of the Imperium forces defending Cadia when it was invaded during the Thirteenth Black Crusade.
The Magos had an important part to play in the Fortress World's defence, as he aided Lord Castellan Creed in jury-rigging an Astropathic Choir in order to call for more Imperial aid to bolster their depleted forces.[1a] Later during the invasion, he was also charged with preparing Cadia's null-array devices, to defend against the Blackstone Fortress Will of Eternity, which was part of the Despoiler's fleet approaching the Fortress World. However, despite Klarn's best efforts, he could not get the damaged devices to function, so despair set in when the Despoiler's fleet finally arrived. When the Will of Eternity fired upon Cadia though, Creed and the Imperium's forces defending the Fortress World celebrated when the null-array activated and dispersed the Blackstone Fortress' attack. Everyone that is except Klarn himself, who had checked the devices an hour earlier and discovered that his adepts working on the null-array had been killed and the devices themselves had been contaminated by Xenos-tech. Klarn did not mention any of this to the celebrating Imperium forces, though he vowed he would discover who had contaminated the null-array when the invasion was over.[1b]
Ultimately, however, the Magos would never be able to uncover that mystery, as he was later killed by the Daemon Prince Urkanthos while defending the null-array from the Despoiler's forces.[1c]
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