Arden IX

Arden IX is a world of the Imperium on which Fabius Bile raised flesh refineries and cloning vats during the Great Scouring that followed the Horus Heresy. No segmentum, system, or galactic coordinates are firmly recorded. Bile is said to have supported the renegade Lord Tyrell there in exchange for foetal material.

Salamanders under Vulkan stormed and burned those facilities in a single night. Bile escaped the world crippled, his ship damaged as he fled into the Warp, and thereafter drifted into the Eye of Terror. The world is remembered chiefly for that Scouring action against the Primogenitor.