Priests of Mars

Priests of Mars by Graham McNiell is the story of a group of Adeptus Mechanicus Explorators planning to go after a failed expedition beyond the Imperium. Space Marines from the Black Templars and Imperial guardsmen from Cadia join the expedition as military reinforcements, and a Rogue Trader is involved as well. There are also one or two surprises from McNiell's past writing as well. Overall this is a good novel, filled with action and intrigue and a couple twists not seen at the beginning. Definitely worth the read, though not sure if it is worth the hard cover price.