We start at the mayhem of the betrayal of Istvaan 3. We end in the airless vacuum of the moon's surface. In both there is blood. In both there is Only War In the first chapter we meet the true cast. The warships of Horus. And slowly the mere immortal Astartes, and lower still human crew. Anons we gonna see some gut ripping action. A ship making for earth with no Gellar field. Pursued by the might of Horus, hounded by daemons. Oh yeah action galore.