various
The Novels: Volume Six

Loyalties are tested in this sixth collection of novels from the Horus Heresy series. From the White Scars to the Ultramarines, Legions discover that their allegiances are fluid and their destinies unclear.
The Horus Heresy
collection

It contains:
Vulkan Lives
Scars
The Damnation of Pythos
Vengeful Spirit
The Unremembered Empire