"The Soul, Severed" is an audio drama in The Horus Heresy series written by Chris Wraight. It was published online on 9 December 2016 as Day 9 of Advent 2016. It has a running time of 25 minutes and is performed by Gareth Armstrong, John Banks, Steve Conlin, and Luis Soto.
Lord Commander Eidolon faces a challenge to his leadership of the Emperor's Children.
As Lord Commander Primus, Eidolon leads the Emperor’s Children in Fulgrim’s absence. But a challenge from within the Legion forces him to turn the Kakophoni against their brethren.
As Lord Commander Primus, Eidolon leads the Emperor’s Children in the absence of his primarch - who even knows where the daemon prince Fulgrim resides, now? But a challenge from within the Legion forces Eidolon to confront one of his rivals, the ambitious Archorian, a capable officer and tactician who would see the Legion returned to glory. Dissent is unacceptable. It is time for the Kakophoni to be set against their erstwhile brethren.
- "The Soul, Severed" (Audio Drama)