The magus has been idle for far too long and an idle magus often leads to poorly thought out schemes. This time I am charged with collecting various beast organs in order to power some type of control rod. I am far too frail to go out hunting beasts - especially yetis!
Perhaps if I were to offer you a reward of some kind you would do it? All I need is for you to head west to the yeti caves and kill yetis. Rip their still beating hearts from their chests and bring them back here.
I... um... well... turns out he doesn't need the hearts anymore. Sorry about that! Hope it wasn't too inconvenient! A deal's a deal though, so here is your reward. You can go ahead and keep the yeti hearts. I hear they hold excellent nutritional value - if you're into eating.