Fell spirits lurk in the forest near Mullach Cagar. Perhaps you can find and banish them.
You found a fell spirit lurking in the forest near Mullach Cagar, likely drawn here by the Angmarim rituals. You should look for more of these spirits and banish them from the Welkin-lofts.
You discovered fell spirits hidden in the forest near Mullach Cagar.
You should find and defeat the wandering fell spirits.
You found and defeated many fell spirits near Mullach Cagar.
You should report this to Molkha in the valley.