You head West for the temple, as the directions say, it tales you about four hours to get there. You easily find the thicket the nymph described and within you see the remains of a low stone wall and archway. As you approach, the Nymph reappears.
You must take care, the druid has left animal defenders that act both as guards and foci for the curse he laid here. They must all be defeated in order to lift the curse and get rid of the fog."