Perturabo - The Emperor Comes: In time, the Emperor of Mankind arrived on Olympia in 849.M30 as part of the Great Crusade and informed Perturabo of his true place in the wider galaxy.Such evidence that remains of the recovery of Perturabo and his installation in the forces of the Great Crusade indicates that the process occurred swiftly, and with immediate acceptance on Perturabo's part, in marked contrast to several other primarchs, it is likely that the tyrant Dammekos was more than willing to bring Olympia into the Imperium's fold, as its satrap, and the price of voluntarily releasing Perturabo from his service was but a small due to pay.Perturabo for his part, it is believed, had already reasoned out his true nature, at least in abstract, as an artificial posthuman being, and indeed expected his creator to one day be revealed to him, even though the particulars no doubt remained a mystery until the Emperor Himself appeared in orbit with His fleet.After his rediscovery by the Imperium, the young primarch was brought to Terra to learn from his father about his chosen destiny and to meet some of his brother primarchs. During his studies, Perturabo learned of the ancient people known as the Firenzii. Captivated by the history of the Human past, Perturabo and his brother Magnus of the Thousand Sons Legion spent many solar months together in search of the buried secrets of Mankind's past glories that had been swept away in the chaos of the Age of Strife, known by Terrans as "Old Night". It was the esoteric writings of the world's former masters that most interested him.He cared more for the ancient philosophies of the lost civilisations of Terra than their mechanical wonders, but it was a heady time of exploration for both primarchs. Perturabo got along well with his brother Magnus, for both primarchs shared a love of learning, and a hunger to know new things. Perturabo was not a primarch to whom the natural ebb and flow of friendship came easily. His friendship was not easily achieved, but his loyalty, once won, was as unbreakable as the hardest iron. Or so he had thought, until time would show him that even the hardest iron could break if worn thin enough.It was remarked upon at the time of his early reception in a number of sources, just what a ravenous mind the new-found primarch possessed. While all of the Emperor's posthuman gene-sons displayed an intellect and capacity to absorb and adapt to new knowledge that surpassed that of an unmodified Human, Perturabo's capacity for learning was truly incredible, and it swiftly came to be said that of all of the Emperor's sons, he was the most gifted in terms of raw scientific and technical intelligence.Much of this sagacity was turned inwards however, and Perturabo was from the outset a distant, calculating mastermind who cared little for the society of others, nor readily deigned to explain his actions or intentions to those around him, even to his fellow primarchs upon meeting them, who he was cold and guarded against to the point of bristling indifference.To the Emperor such personal foibles mattered little, and in Perturabo he found a new weapon for the arsenal of the Great Crusade, a warlord and general whose savage might was only eclipsed by his razor-keen intellect. To Perturabo each battle and each campaign was no more than a problem to be objectified, deconstructed and overcome, and it would not be long before the first of Mankind's forces would feel the terrible power of this murderous mind at world.