The event started on January 1 and will continue until January 30. Its format is pretty much the same as that of last year’s Darkening of Tristram 20th anniversary event, although this time around, it will last for longer. Diablo III’s description of it on the official website says: “Your journey begins on the trail of a group of mysterious cultists causing trouble in Sanctuary. As you hunt them down in Adventure Mode, you’ll uncover clues leading to a portal into Tristram’s past, and the terrifying darkness that took hold of the town so many years ago. . . .”