The consequences of his choices begin to mount as he faces an ancient, warp-born threat.

These are frequently taken down due to copyright strikes.

While I couldn't find a direct link to a free online audiobook, I can suggest some alternatives:

The Eisenhorn audiobook is more than just a book reading; it is a radio drama that brings the Warhammer universe to life. It takes the dense lore of the Inquisition and makes it accessible, personal, and deeply human (or as human as a 41st-century inquisitor can be).

As for a free online audiobook, I'm not aware of any official sources that offer the Eisenhorn Omnibus as a free audiobook. However, you may be able to find unauthorized or pirated copies online. I would recommend exploring official channels, such as audiobook platforms or the publisher's website, to obtain a legitimate copy of the audiobook.

It is a story about the slow corruption of power, the weight of duty, and the terrifyingly thin line between faith and heresy.