Diablo III is getting a novel, Blizzard’s announced, to coincide with the game’s release next month. Diablo III: The Order is of the tie-in kind and takes place years before the events of the game, following Deckard Cain as he searches for surviving members of the Horadrim order.
Something to do on those breaks from the game itself, yeah?
Blizzard’s site here offers a few more details, as well as an excerpt from the second chapter. The Order and Diablo III are both out on May 15th.