David Annandale
Grey Knights: Sons of Titan

From the war-torn Sanctus Reach to the Realm of Chaos itself, Grey Knights Squad Styre battles their daemonic foe across four tales of incredible adventure and heroic sacrifice.
Warhammer 40k
novel

It contains:
True Name
Maledictus
Incorruptible
The Mourning Tower

Also in:
Grey Knights Digital Bundle

Black Library
2015-09-24
9781784960094
hardcover

Games Workshop
2015-10-13
9781784960100
hardcover

Black Library
2016-11-15
B01MSMI078
kindle

The Black Library
9781782513186
ebook

Games Workshop
2016-09-08
9781784962760
paperback

Games Workshop
2016-10-11
9781784962777
paperback