The First Wall - The Horus Heresy: Siege of Terra Book 3

Book 3 of the Siege of Terra.The outer defences have fallen, but the walls of the Imperial Palace stand. To break them, the Traitors need their most devastating weapons – and so the Lion’s Gate Spaceport must be theirs…

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It's time for Rogal Dorn's defences to get their real test – the attention of Perturabo and the Iron Warriors. The irresistible force meets the immovable object – and carnage ensues.