The Witch Mounds

From publisher blurb: The Witch Mounds is an OSRIC(tm) module designed for 6-10 adventures of levels 3-6. Near the southern verge of the Yoros Forest, rests a series of grass-covered barrows arranged in a horseshoe shape. Ten smaller barrows and one known as the Great Mound sit facing inward at each other. The site is known as the Witch Mounds by the locals, and it is shunned, for evil lurks within, a place of old Maerling evil best left alone. Will you brave the Haug-eldr, the greenish flame seen in the depths of night around The Witch Mounds to explore the dangers and riches that surely lie below?