Journal Tactica: The Battle for the Signus Cluster - Assault on Kol - Horus Heresy Book

Pre-order — street date 17 October 2026. Ships on release.

Journal Tactica: The Battle for the Signus Cluster – Assault on Kol is a softback campaign supplement for Warhammer: The Horus Heresy. It tells of the forgotten war fought by the Legio Custodes on the cursed mining world of Kol against cultists, Traitor Legionaries, the corrupted 606th Cohort of the Solar Auxilia and the Daemons of Slaanesh – a sister conflict to the Blood Angels' battle on Signus Prime.

The book introduces a full Daemons of Slaanesh army list for the Age of Darkness, with Daemonettes, Seekers, Fiends and more, army-wide special rules and the option to field Exalted Sections of corrupted Solar Auxilia. The Legio Custodes gain two new characters, the Ephoroi Venatari-Proconsul and the Hykanatoi Proconsul-Delegate, plus an updated Gyrfalcon Jetbike Sodality profile, and a Legendary Mission recreates Shield-Captain Medraut's assault on Kol's corrupted hive network.

• + Background on the Signus Cluster and the war for Kol
• + Daemons of Slaanesh army list with army-wide special rules
• + Exalted Sections option for corrupted Solar Auxilia
• + New Legio Custodes characters: Ephoroi Venatari-Proconsul and Hykanatoi Proconsul-Delegate
• + Updated Gyrfalcon Jetbike Sodality profile
• + One Legendary Mission: the assault on Kol

• + 1 × Journal Tactica: The Battle for the Signus Cluster – Assault on Kol, softback