The Frozen Curse

From the introduction: You are mercenaries, adventurers that traverse the frozen wastes of the northern part of the continent in order to make a living, working for food, money and fame. Now, you are to go to the village of Iih (If you're playing an officially published 5e adventure that takes place in the frozen north, you can use this town instead of one of the ten cities, or add it as a secret 11th town). People missing, trails of blood leading to a place where no one seems to know or is willing to enter. The villager elder wants you to help them and stop this phenomenon.