Serpent: The Horus Heresy Series (Unabridged‪)‬

Stranger things than xenos and mutants dwell in the dark places between the stars - things known only too well to the inhabitants of Davin.

Cult priest Thoros calls upon the favour of his patron gods to aid him in casting out the pretenders and non-believers, for only the true disciples of Chaos can be allowed to rule the galaxy....