Ironfire (The Horus Heresy Short Story)

His body broken by the fall of the Schadenhold, the Iron Warriors warsmith Idriss Krendl is nonetheless far from defeated. Now commanding two of the mighty siege guns stolen from the forge world of Diamat, he seeks to redeem himself in the eyes of his primarch by bringing down the Great Selenic palace on Euphorus, and gather invaluable tactical data for the eventual assault on Terra. His plan? To utilise a strategy of his own devising - the glorious Ironfire protocol.

Read it because
Follow the continuing adventures of Iron Warriors Warsmith Idriss Krendl as he attempts to take down a giant palace with a pair of the enormous siege guns. We last met Krendl in the story The Iron Within, where he went head to head with the loyalist Dantioch. After that humiliation, he's trying to recover his reputation with an audacious plan.