14. Wendigo (wenddigo, wittiko), an Ojibwe myth to explain cannibalism despite bountiful food supplies.
Stories tend to originate around people either committing cannibalism, or being forced to when lost in the forest. The latter has some story element involving hearing your name being called in the wind and water and creatures in the forest, and if you finally give it an answer, you’ve allowed the spirit of the wendigo in.
It was a law until the mid 20th century that anyone suspected of being possessed by a wendigo should immediately be put to death or risk devouring the entire village/town, or passing the spirit on to another host.
15. Näkki is a spirit that lives in still pools and under bridges. It can appear as a beautiful woman to lure people close to the water, whereupon it drags them into the depths.