Erethor's Tower

From the introduction: The Westryn Elves have found the location of a rift leading into the plane of negative energy. The rift is in the location of an ancient secret. Can the heroes help to uncover the secret before the rift opens to its full potential? A Dave Arneson’s Blackmoor Adventure for ATL 3-15. Recommended for characters who have played Episode 18: Kissing Day, Episode 26: Lessons, and Episode 51: Portents.