Dan Abnett
Eisenhorn
Eisenhorn (series)
Inquisitor Eisenhorn investigates the infernal workings of Chaos and gets drawn into a terrible conspiracy in the complete trilogy from Dan Abnett.
Warhammer 40k
omnibus

It contains:
Backcloth For A Crown Additional
Malleus
Xenos
Missing In Action
Hereticus

Games Workshop
2005-01-04
9781844161560
paperback

The Black Library
9781785721854
ebook

Black Library
2013-12-06
9781849701037
audio cd

Black Library
2016-11-15
B01N94AXH7
kindle

The Black Library
2012-01-01
9781849703369
paperback