This Is In a Alternative Timeline Where There Is 21 Legions
Summary :
During the Era of the 30,000 millennium
The 9th legion in the imperium of man the blood angels there was a secondary legion that was formed and fought alongside the 9th which was known as the 10th who for Centuries was thought to be terminated and purged they re emerged from the ashes of Baal and became the other side of what the blood angels were… ( Summary over )
Codex entries
Malachor Thorne a son of the emperor
cursed by altered seed he was unlike other people He was smaller but still of great strength by the age of 20 he was genetically engineered to become perfect he was a first born Primarch of the Emperor’s imperium.
As a structural aspect in the Emperor‘s imperium, he was given 500 men to serve him and his legion was there for called the Emperor’s light during one incursion Thorne made a crucial mistake invading the planet of Golgottha a planet filled of orcs his legion was slaughtered he was the only survivor and made it back to the Emperor only to be suffering a worse punishment than death.
The emperor banished him to the other side of Baal as a punishment to be watched by the blood angels for he did not want him in his imperium for the mistakes he has made
by the time of the betrayal lead by Horus, Baal was attacked upon the death of Sanguinius and Thorne was killed or so they thought.
Throne escapes with a small ship but ends up in a warp storm upon loosing controls of his vessel due to visions of death his disappearance was noted as 5 days in imperial time 30 thousand years in warp space.
throughout his time in the warp he suffered from a similar gene defect of the blood angels having visions of Sanguinius’s death however after 30 thousand years in the warp through space and time full of rage he passed through a ray of void altering him in ways that are thought to be impossible.
Thorne awakens not knowing what has happened. He decides to try to figure out what has occurred he takes control of the vessel and decides to find a way out of the warp storm After roaming time and space, the vessel suddenly shakes, and he crashes on a distant planet in the imperium
Making his way out of the ship he finds himself alone and afraid seeing bones and dust followed by desolate wastelands nowhere to go he realizes he is on Baal after roaming around for what felt like hours he suddenly collapses hearing a voice. It was the emperor the Emperor‘s light.
Not knowing who was speaking, he found out very quickly what had happened and no one knows what he was told, but he did act on it now 30 thousand and 20 years old he decides to change and help how he can after learning of his what he now knows of his brother and fathers demise
In attempts to repair his ship, he manages to do so and flies his way to a planet full of orcs yet again as he gets out and begins to rip their heads out of their bodies, he finds his way towards a deathwatch, kill team where they aim at him, cluelessly not knowing what he is not knowing who he is due to him being covered in warp fluid as well as damaged armor and blood of orks
The deathwatch kill team capture him and take him to the imperium where he is questioned by Roboute Guilliman during his questioning, he stands up off his knees and authoritatively states what he heard after stating his opinion Guilliman tells the inquisition to leave him and let me join the imperium
Over the next 5000 years in attempts to fix his mistakes, he forms a new chapter and after years of service and experience one day by request of himself he tells Guilliman he wants to fix his biggest mistake after a big speech to his men he exiles him and his chapter back to where he made his mistake Golgottha him and his 500 followers effortlessly destroy Golgottha After returning he is awarded with a gold and white armor becoming the immortal Primarch. He takes him and his men to Baal to watch over the warp storm residing near the planet
6000 years in the present He and his men get attacked by chaos he suffered heavy casualties, and the planet he wants loved gets eviscerated evacuating, the civilians guardsmen and everyone he can they emergency flee to the nearest planet he knows Golgottha he sets up home there and forever resides, serving the imperium from a planet. He conquered and rebuilt in the name of his father and his brother with his right hand being the very death watch that saved him as a tribute to the planet. He forces his chapter to dawn the blood of the creatures who once inhabited the world he lays his feet on a deep red a mix of royalty and revenge he now sets forth to kill everything that threatens his fathers kingdom the angels of Baal are born.