|This page contains spoilers for:||Soul Drinker (Novel)|
He led his assault squad during the attack on the Van Skorvold starfort. Under Librarian Sarpedon's command, he fought through the starfort to retrieve the Soul Spear, but it was stolen right in front of Sarpedon by the tech-guard of the Adeptus Mechanicus.
When the Soul Drinkers attacked the Mechanicus platform, Tellos was seriously wounded after both hands were wrenched off at the wrist by an Electro-priest. His life was saved by Apothecary Pallas who dragged him to safety. Whilst recovering on the Soul Drinker ship, the Gundog, Tellos was found acting strangely with action of jamming metal shafts in his amputated stubs and destroying servitors in the ships library. This marked the ending of Tellos' sanity as a Space Marine and the beginning of his pronounced mutations.
Tellos had the most obvious mutations in the chapter, second only to Sarpedon. Refusing to accept any other fate, he wanted to fight on; he had chainblades grafted into each end of his arms whilst his accelerated healing mutation held them in place. His second mutation was a gross amount of muscularity and semi-translucent skin.
During the time Sarpedon was looking for a cure to halt their mutations, Tellos disobeyed Sarpedon on numerous occasions. When the cure was finally located, the Soul Drinkers were forced to abandon Tellos and forty assault marines behind on Stratix Luminae. They were last seen taking on tens of thousands of mutants and undead creatures from Teturact's heretical army.
A few years later Sarpedon received word that Tellos and his Marines had wiped Stratix Luminae clean of life, and had pledged loyalty to Khorne, the Chaos god of blood and war. Tellos was eventually tracked to Entymion IV where he and Sarpedon engaged in a final duel over a bridge. Sarpedon was barely victorious, but during the battle the bridge collapsed, burying him in rubble. As the remaining Soul Drinker marines evacuated Entymion IV, Exterminatus was ordered due to the planet being over-run by Daemons and heretics. Tellos survived from the ruins of the bridge, and sat to watch the Cyclonic Torpedoes boring into the surface of Entymion IV. His final thought was "More blood for the Blood God", as the planet broke apart under his feet.