Ordinary citizens of the Galactic Imperium can sleep peacefully - the powerful Imperial Inquisition stands guard over their peace. But the adherents of Chaos can not wait to disturb their peace by letting crowds of fanatics on peaceful planets. And to prevent this from happening, the imperial inquisitor Lymon Stern and his assistants will have to sweat a lot. After all, not only heretics are involved here, but also the mysterious Ancients...