A tale of the Horusian Wars, John French’s short story The Son of Sorrows offers a dark and at times harrowing look at another of Covenant’s warband, the ‘specialist’ Koleg. Tasked with a preemptive strike on an early-stage heretical cult, he approaches his task – sowing terror, and making a statement – in a methodical, emotionless fashion, the perfect weapon for the job. As we watch him prepare for his mission and then calmly slaughter his way through the reeling cult members we see his thoughts turn, impassively, towards the man he used to be and what made him who he now is.