Call of the Lion is an anthology short story published in The Horus Heresy series that was originally part of an anthology novel. Call of the Lion was first published as part of the Tales of Heresy main series anthology in April 2009. The cover image used is that of the unabridged audiobook version Call of the Lion which was released in November 2015.
The Dark Angels Legion is couched in layers of mystery and secrecy, harkening back to the days of the knightly orders of Caliban that helped to raise their infant Primarch. But Lion El'Jonson's greatest strength often proves to be one of the most divisive issues amongst his sons -- rarely can any two commanders agree upon one single course of action from the start. As they seek to bring the world of Byzanthis to Imperial Compliance, Chapter Masters Astelan and Belath are among those with very different notions of what victory might require.
- Call of the Lion (Short Story) by Gav Thorpe