"Eisenhorn" is a series of science fiction novels by Dan Abnett, set in the Warhammer 40,000 universe. The series follows the character of Inquisitor Gregor Eisenhorn as he investigates various threats to humanity. The omnibus edition likely compiles several books from the series into one volume.
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Sometimes, publishers or authors release excerpts from their works as free audiobooks. These can be found on platforms like Audible, YouTube, or the author's official website. "Eisenhorn" is a series of science fiction novels