The Schism of Mars
Before the Warmaster's guns spoke at Isstvan, the oldest treachery of the Heresy was already burning in the forge-cities of Mars. It began not with a bolter, but with a question a machine should never have been permitted to ask.
Overview
Before the Warmaster's guns spoke at Isstvan, the oldest treachery of the Heresy was already burning in the forge-cities of Mars. It began not with a bolter, but with a question a machine should never have been permitted to ask.
This short reference draws on the existing Chronicle. Follow the full account for the narrative and context.
Sources and further reading
Graham McNeill, Mechanicum, sections 1.06 and 2.05 — Kelbor-Hal, the sealed vaults, Zeth and the Death of Innocence.
Read the full account: The Schism of Mars: The Death of Innocence and the Ruin of the Red Planet