- "The seeds of heresy are sown"
- —Book's tag-line
Horus Rising is the first volume of the Horus Heresy series of novels.
Horus Rising details the rise to power of the Warmaster Horus, Primarch of the Luna Wolves Legion, after the Emperor of Mankind appoints him commander of the Imperial military and places him in charge of the Great Crusade. Much of the focus is on the Captain of the Luna Wolves' 10th Company, Garviel Loken, as he becomes a member of the Mournival (an advisory body to Horus), and his involvement in campaigns against Traitors and aliens at the close of the Great Crusade.
- Horus Rising by Dan Abnett