Chirurgeon is a short story published in the Horus Heresy Series. Chirurgeon was originally published simultaneously as a part of the anthology novella Blades of the Traitor and as a stand-alone e-book. It was later released as an audiobook as part of the Black Library's Audio Week 2015. It is now also included in the War Without End anthology novel and in The Last Phoenix Omnibus.
In its earliest days, the III Legion was blighted by a genetic flaw that threatened to end the Phoenician's bloodline forever. Fortunately, through tireless effort and the miracle of the Primarch's own genetic perfection, visionaries like Apothecary Fabius Bile were able to halt the corruption and restore the Emperor's Children to their former glory. Except, it would seem, that a terrible secret has been kept from the rest of the Legion, and the threat of further degeneration is quite real...
- Chirurgeon (Short Story) by Nick Kyme