Rogue Trader - The Frozen Reaches

The Warpstorm Trilogy is an epic series of adventures, spanning several books, which centres on the exploits of the Explorers as they uncover a great mystery that is hidden within the depths of the Hecaton Rifts and threatens the entire Expanse: a source of tremendous power, that will spell doom for the inhabitants of the Koronus Expanse and the nearby Calixis Sector should it fall into the wrong hands. The series continues in The Citadel of Skulls , and concludes in The Fallen Sun.