Focuses on Malcador the Sigillite and his newly formed choose-your-own-adventure style spy network, the Knights-Errant.
An intense, real-time account of the Word Bearers' surprise attack on the Ultramarines at Calth, cementing the hatred between Guilliman and Lorgar. Warhammer 40k - Horus Heresy - Books 1-54 -comp...