At the top of a cliff stands a keep. It is a dark, lonely place that the sun shines weakly upon and whose stones seem to swallow up the moonlight when night falls. And as the sun sets, from the castle`s empty halls echoes forth a terrible and irresistible song, the song of the siren Vaedra, hunting for more prey to feed her voracious appetite for minds. Includes 5E adventure Vaedra`s Lair.