Nick Kyme
Veil of Darkness

Captain Sicarius awakens on Macragge after his defeat on Damnos, but all is not well in the Ultramarines fortress-monastery. Strange things stir in the darkness and something deadly waits in the shadows for its chance to strike...
Space Marine Battles
short

Also in:
Space Marine Battles: Audio Drama Collection
The Everliving Legion
Ultramarines
The Hammer And the Eagle: the Icons of the Warhammer Worlds
Enhanced Audio Edition Ebundle