Eisenhorn Series
The Eisenhorn series focusing on the Ordo Xenos Inquisitor Gregor Eisenhorn.
Ravenor Trilogy
The Ravenor trilogy is a series of novels focusing on Eisenhorn's former pupil Gideon Ravenor.
Bequin Trilogy
The Bequin trilogy is the final trilogy of the series, focusing on a conflict between Ravenor and Eisenhorn, and narrated by Eisenhorn's former operative Alizebeth Bequin.
