Void Child Conflagration

The Void Child Conflagration was a notable incident that took place between the Emperor's Trident Space Marine Chapter and a large warband of the Thousand Sons Traitor Legion at some point during the 42nd Millennium.

History
Sometime during the Reclamation Crusade, a child was born by Chapter serfs on the vessel known as the Siren's Call. A child being born is nothing special, as Oranthi culture encourages large families, but the child was an extremely powerful psyker, something that all the crew members including the Librarians on the ship felt as if a hammer hit them in the head. Even psykers on Oranthi felt the child's psychic touch. A few months after the child's birth a warband belong to the Thousand Sons attacked the vessel seeking to take the child. The void battle was fierce as pieces of each ship broke off from their hulls. It wasn't until the boarding actions from the Thousand Sons seeming endless number of Rubricae and Tzaangors entered the ship.

The Emperor's Tridents managed to hold them off for a number weeks until ammunition started to become rare. With the Thousand Sons continuing to gain footholds at great cost, the Emperor's Tridents were tactically withdrawing to more advantageous positions and sometimes closing off parts of the ship to halt the traitor's charge. During these engagements the child was being passed off by humans and Astartes alike, moving the child deeper and deeper into more fortified sections of the ship. When the Astartes and humans that carried the child were cornered the Librarian and Captain of the vessel dueled the Exalted Sorcerer who was leading the Warband, the surviving Emperor's Tridents started to converge on the Captain's location to assist him.

The Librarian was killed and the captain was gravely injured, but had the severed head of the Sorcerer in his hand. Even with the death of the Warband's leader, the Tzaangors and the Rubricae still held footholds within the ship. It wasn't until the sister-ship of Siren's Call, known as Scyllas' Hunger, came crashing into the enemy ship and boarded the heretic's vessel, as it was assumed that most of the Traitor Astartes were currently on the Siren's Call. After days of attacking and purging, the Thousand Sons were defeated and the child was saved. After the engagement, both ships returned to Oranthi for their fallen's Funerary Rites and for the Librarium to examine the Void Child.