The Horus Heresy Book 38
The First Legion go to war, and their primarch's brutal actions threaten to tear apart the fragile alliance of Imperium Secundus.
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There was no way Imperium Secundus was going to last (or we'd know about it in the 41st millennium, wouldn't we?) and this is the beginning of the end…
With the Dark Angels spread across a hundred systems, primarch Lion El’Jonson stands as Lord Protector of Ultramar – though his true motives are known to few indeed, and old rivalries on the home world threaten to tear the Legion in half. But when word comes of the Night Lords’ attack on Sotha, the Lion’s brutal actions bring Imperium Secundus once again to the brink of civil war. Not even the most fearsome warriors of the Dreadwing, nor any arcane secret of the Order, can guarantee victory if he sets himself against his loyal brothers.
Written by Gav Thorpe.