Idaeus

From Lexicanum

Idaeus is a deceased Ultramarines Captain of the 4th Company. Idaeus was a more on-the-hand thinker, more or less adhering to the Codex Astartes when he needed to. He knew when to bend the rules of engagement and when not to. He was widely respected by the men of 4th Company, and had two promising Veteran Sergeants, Uriel Ventris and Pasanius Lysane, along with Sergeant Learchus. He died while in battle against the Night Lords, where Imperial forces had ordered 4th Company to destroy the bridges leading to the Imperial forces' flanks, so the Chaos could not use them.

Captain Idaeus gave his power sword to Sergeant Ventris before leaving, and promoted him to Captain. Idaeus died firing a plasma pistol to light the misfired charges on the bridge.

Sources

• Chains of Command (Short Story) by Graham McNeill
• Nightbringer novel, by Graham McNeill