From the release:
After a perilous adventure, the characters have stumbled into the care of Zainab, a kindly old woman in her tower by the sea. As they begin their journey home, they pass a nearby village, Nur’Kush, and are confronted with a dark horror. Blame for it falls at the feet of Zainab. The characters must find the truth; or the madness that envelopes Nur’Kush will continue.
This Chapter for Nights of the Crusades melds tales from Sinbad's adventures and ancient Greek myth, and reveals insights into the Wavering Flame's practices. It also includes new creatures, items and abilities that can be used by a Tale-Weaver for any future games.