Curse of Strahd
Atop the hill is a wide ring of black boulders and smaller rocks that collectively form a makeshift wall enclosing a field of dead grass. Lightning strikes the edge of the ring from time to time, illuminating a ghastly, fifty-foot-tall statue made of tightly woven twigs and packed with black earth. The statue resembles a towering, cloaked man with fangs.
This wicker effigy of Strahd was worshiped by the evil druids at Yester Hill. With their powers, and in the presence of Strahd, they summoned forth a massive blight known as Wintersplinter from the roots under the effigy. In doing so, they destroyed the Wicker Man.