Horus' advance on Terra reached the Ollanz Cluster at this time, encountering Loyalist reinforcements bound for Beta-Garmon rearming and refuelling at the Borman System. The Loyalist fleet rapidly redeployed to oppose the Traitors' advance and to protect the valuable, resource-rich worlds of the star cluster.
The turning point of the brief but intense conflict came at Borman IV, when a demi-legion of the Legio Astorum, who were also known as the "Warp Runners," launched a daring offensive towards the world's beleaguered capital city.
The crucial Titan battle took place in the volcanic Yrevendi Desert immediately to the north of the capital, as Princeps Seniores Varr Harax led a surprise thrust through rough terrain at a weak point in the Traitor Legio Fureans lines, accompanied by ground forces drawn from the Iron Hands Legion.
The "Tiger Eyes", as the Legio Fureans was also known, had been drawn away by a bold diversionary attack and were annihilated by the Warp Runners, who were able to break through the Traitor Emperor's Children Legion lines and reinforce the beleaguered capital city.
Ultimately Borman IV and the entire Ollanz Cluster were delivered from the Traitors' possession, allowing for Loyalist forces to be redeployed to their original destination at Beta-Garmon in time for the final battle that Horus would face on the road to Terra.
- Adeptus Titanicus - The Horus Heresy: Rulebook (Specialty Game), pg. 17
|Battles of the Horus Heresy|
|004-006.M31||Battle of Prospero • Istvaan III Atrocity • War Within the Webway • Battle of the Somnus Citadel • Unrest on Caliban • Signus Campaign • Schism of Mars • Battle of Diamat • Drop Site Massacre • First Battle of Paramar • Battle of the Coronid Deeps|
|007-008.M31||Battle of Phall • Battle of Ravendelve • Battle of the Alaxxes Nebula • Siege of the Perfect Fortress • Chondax Campaign • Second Battle of Prospero • First Siege of Hydra Cordatus • Battle of the Furious Abyss • Battle of Calth • Battle of Armatura • Shadow Crusade • Percepton Campaign • Battle of Iydris • Thramas Crusade • Fall of Baztel III • Battle of Vannaheim • Second Battle of Paramar • Battle of Constanix II • Siege of Epsilon-Stranivar IX • Treachery at Port Maw • Manachean War • Mezoan Campaign • Battle of Bodt • Battle of Dwell • Battle of Molech|
|009-010.M31||Xana Incursion • Carnage of Morox • Sangraal Campaign • Liberation of Numinal • Battle of Arissak • Battle of Perditus • Battle of Sotha • Scouring of Gilden's Star • Battle of Nyrcon • Battle of Tallarn • Battle of Nocturne • Battle of Pluto|
|011-014.M31||Malagant Conflict • Battle of the Kalium Gate • Battle of Catallus • Battle of Tralsak • Tarren Suppression • Balthor Sigma Intervention • Scouring of the Ollanz Cluster • Battle of Zepath • Battle of Anuari • Battle of Pyrrhan • Second Battle of Davin • Battle of Trisolian • Battle of Yarant • Battle of Krade • Battle of Deluge • Battle of Heta-Gladius • Battle of the Aragna Chain • Battle of Kalleth • Battle of the Diavanos System • Battle of Desperation • Battle of Beta-Garmon • Defence of Ryza • Battle of Thagria • Solar War • Raid on Luna • Siege of Terra • Great Scouring|