Fearing that the new "lord of yetis" could grow bold enough to attack Tarren Mill and devour its citizens the Forsaken call on groups of adventurers to slay the beast before he can get the chance to do so. Yetimus is a large and fairly powerful elite-level monster and is usually too much for a player to handle alone, normally it requires a small group of heroes to defeat the monster or aid for heroes of higher-experience and level.