The Secret History Omnibus Volume 3

Since the dawn of time, Dyo, Reka, Aker, and Erlin, the four Archons who
head the Four Houses, have fought each other to control the fate of hunmankind.
But times change, and an evil Fifth Archon, William of Leece, is attempting to
bring about the Apocalypse.

Translated from the series' original French publication, this omnibus
collects issues #15-20.