Mushroom King

Imagine that you are a Viking King who reaches a strange mushroom kingdom during one of the treasure hunting trips. There you meet a mushroom witch who uses her magical powers to put you under a strange curse after the two of you had a disagreement on something. However, the witch tells you about a potion that you can brew to lift the curse. You should not think that finding the ingredients and brewing the potion will be an easy thing to do. You must search the land very carefully and use the clues that you find to get the things that you need for the potion.