Blizzard Entertainment and Insight Editions have announced the December 13, 2011 launch of Diablo III: Book of Cain, an illustrated tome chronicling the origins of Sanctuary, as transcribed by the scholar Deckard Cain.

Designed to look like an in-world artefact from the Diablo universe, Book of Cain conveys the games' lore through a first-person account. The story begins as Cain leaves his journal to his adopted daughter, Leah, passing along the tale of Sanctuary's creation and the eternal war that rages between the High Heavens and the Burning Hells.

Book of Cain chronicles the rise of the Zakarum, the traditions of the Horadrim, the genesis and geography of Sanctuary, and the key moments in the world's history – such as the destruction of Tristram – that set the stage for the events of Blizzard's upcoming Diablo III.

Containing dozens of sketches, Cain's footnotes, and a hand-drawn map of Sanctuary, this tome attempts to provide readers with a deeper understanding of the Diablo universe.

Sr. Vice President of Story & Franchise Development Chris Metzen states: "We're super geeked up about Book of Cain. What's really cool is that after fifteen years of developing the Diablo franchise, we can finally share the definitive look at this world and its rich history with our players."