Changes

The Emperor eventually came to Medusa to reunite with his lost son. Ferrus Manus tested himself on him in a cataclysmic battle that is said to have lain waste to entire mountains. Finally having found someone equal, Ferrus accepted the Emperor as his master and took command of a legion of [[Space Marines]], created with use of Primarch's gene-seed .{{Fn|12}} Ferrus met his brother [[Fulgrim]] early on and initially was disdainful of the Phonecian's appreciation for art and culture, seeing it as a waste of time when a [[Galaxy]] needed to be conquered. Fulgrim jokingly referred to Ferrus as '''The Gorgon''', a reference to the mythical Terran creature whose ugliness turned men to stone. The title ultimately stuck.{{Fn|2b}}

===Great Crusade===

Thousands of planets would fall to the remorseless [[Iron Hands]] under Ferrus's leadership. Each weak link in humanity was to be purged if mankind was to grow stronger. Scholars spoke of the wave of piety and faith that spread before the Iron Hands, with many planets suddenly motivated to look into themselves when they heard that the Iron Hands were approaching.

Ferrus instilled in his sons a doctrine of ruthless pragmatism and strength through sacrifice, demanding that emotion and weakness be cast aside in the pursuit of efficiency and victory. His Legion operated as an unrelenting war machine, crushing resistance with precise and overwhelming force. This cultural effect was not due to spirituality, but fear — fear of being judged unworthy by Ferrus Manus, whose reputation for merciless censure was legendary.