But as the forces of the Imperium and Chaos square up for the final, large-scale confrontation, Gaunt discovers that the greatest threat of all may come from inside rather than out. Anthologies & Short Stories Dan Abnett and various other Black Library authors have released Sabbat World Crusade short stories. Some stories are about Gaunt's Ghosts and the rest are other Sabbat Worlds stories. There are currently 2 anthologies as well as 3 short stories that have not yet been collected into an omnibus or anthology. Dan Abnett., ed. (2021). Sabbat War. Nottingham. Black Library. ISBN 1800260288 Vermilion Level, 2013 – (An alternate version of the story in the First and Only novel.) Forgotten, 2014 – Midnight Rotation, 2015 – (Released as part of an unrelated series titled Call of Chaos.) Another anthology, titled Sabbat War, has been planned. Spin-off Titles Dan Abnett has also authored three other titles that share the setting of the Sabbat Worlds Crusade. The first is Double Eagle, focusing on the Phantine Air Corps introduced in The Guns of Tanith and set in the same immediate timeframe as Sabbat Martyr. The second is a fictional history of the Crusade, from the beginnings of the crusade 10 years before the setting of the first novel to a point just after Sabbat Martyr, providing an overview of the crusade as a whole. Most recently published is Titanicus, detailing a Titan Legion's struggles against Chaos invaders and internal schism alike on the Forge World of Orestes. Although not linked with the Sabbat crusade, a man from Tanith features briefly. A sequel to Double Eagle, titled Interceptor City, has been planned. Two other spin-off novels have also been planned. The first is Urdesh: The Serpent and the Saint by Matthew Farrer, focusing on the Iron Snakes and continuing the Sabbat Worlds saga on Urdesh. The second is Volpone Glory by Nick Kyme, focusing on the Volpone Bluebloods on Gnostes. See also List of Warhammer 40,000 novels Notes References Military science fiction novels Warhammer 40,000 novels Novels by Dan Abnett