Ylsa Henstak was a duergar merchant in Gracklstugh during the Rage of Demons[as of when?].
Ylsa was a rich merchant in Gracklstugh, notorious for leading caravans that always arrived on schedule. She was a member of the Merchant Council.
During the Rage of Demons, Ylsa was intrigued by how the local derro gained so much surface currency and jewelry.
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Christopher Perkins, Adam Lee, Richard Whitters (September 1, 2015). Out of the Abyss. In Jeremy Crawford ed. (Wizards of the Coast), p. 61. ISBN 978-0-7869-6581-6.