Matthew Farrer
After Desh'ea

The War Hounds Legion have been reunited with their primarch. It is a time for rejoicing... isn't it? The masters of the Legion gather to discuss their new master, while the primarch, Angron, lurks in the darkness. Can Khârn unite master and servants?
The Horus Heresy
short

Also in:
Books 10-12: Unabridged Audiobook Collection
Angron
Tales of Heresy