"Into the fires of war."
- —Book's tag-line
Promethean Sun is the first novella in the Horus Heresy series of novels. The novella was originally published as an A5 hardback novella, wrapped in faux salamander skin. Only three thousand copies of this collectors' edition novella were printed. The novella was republished in June 2013 as a standard hardback book, an e-book, and an unabridged audio book.
As the Great Crusade sweeps across the galaxy, the forces of the Imperium encounter a world held in thrall by the alien Eldar. While the Iron Hands of Ferrus Manus and Mortarion's Death Guard battle against the hated xenos, it is the Salamanders who brave the deepest and most deadly jungles, encountering monstrous reptilian beasts and foul witchery along the way. Ultimately, it falls to their Primarch Vulkan himself to thwart the sinister designs of the Eldar, if the Legions are to liberate this world and bring Imperial illumination to its inhabitants.
- Promethean Sun (Novella) by Nick Kyme