The fleet reaches the twilight belt of a tidally locked world. Guilliman identifies immense mountain structures as a possible human inheritance and sends scouts to test their origin and the ork dispositions. The campaign begins with a choice that combines tactical reconnaissance and a symbolic purpose.
Further reading
Read the original sources
David Annandale, Roboute Guilliman: Lord of Ultramar.
Original summary and analysis. No book text or artwork is reproduced.