Warhammer 40,000 Roleplay: Dark Heresy:

Warhammer 40,000: Dark Heresy will be the first in a brand new trilogy of long-awaited Warhammer 40,000 roleplay games. Full of mystery, investigation and corruption, this book is an ideal introduction to the dark and gothic universe of the 41st Millennium, and marks the launch of a new gaming system that players have been anticipating for over 20 years