The Näckrosor Rune is one of the Five Runes that you’ll need to gather to enter to the Sacred Tree in the Forest and talk to the Forest Queen.
How to Get the Näckrosor Rune
You will get the Näckrosor Rune on the Bioluminescent Bog area or the home of the dangerous Nökken. This Nökken is invisible, but you will have an idea where it is buy looking at the pattern of his footsteps. It may take you a few tries to past him. The trickiest part is where the vines are, you may want to jump onto the vines, but don’t do this because he’s waiting on one of them. Instead, jump down in between the vines into the water and swim through it. Move quickly, because he’ll try to follow you (you’ll see his air bubbles in hot pursuit). Avoid the plants on the edge of the water, this will also knock you down and make you slow. After leaving the water, jump up to the left to grab the Näckrosor Rune.