Horus Heresy, The 27 – The Unremembered Empire (2014 Printing) – 40k Novel – Black Library from Black Library

Description

Perhaps the greatest secret of the Horus Heresy is revealed, as Roboute Guilliman commits an act that could be considered treachery. At the same time, primarchs converge on Macragge. Guilliman, the Lion, Vulkan and the insane Konrad Curze all in the same place… there are going to be fireworks.