House Krast is a Loyalist Imperial Knight House with strong ties to the Adeptus Mechanicus. House Krast hails from the Knight World of Chrysis, and was the first of its kind to be rediscovered by the Imperium at the outset of the Great Crusade in the late 30th Millennium. Chrysis and its nobles are among the longest-serving allies of the Imperium. Chrysis retains a strong connection to the Sol System and Mars by a long-established stable Warp route. House Krast has dominated Chrysis since the time of the Great Crusade, sending its Knights into battle at the behest of the Fabricator-General of Mars and seconding its nobles into the service of the Legio Titanicus of Mars. However, Krast was the only knightly house on Chrysis to survive the calamitous events of the Horus Heresy, forcing its r