Zornel Vrek is the foremost expert in medical science in Droaam, and runs the hospital in the Great Crag. House Jorasco has no presence within Droaam, and so the Daughters of Sora Kell needed to find other ways to look after the health of their subjects.
Zornel has a natural gift for medicine, both magical and nonmagical. He has been experimenting with the regenerative properties of troll's blood, and has successfully managed to create an alternative to House Jorasco's Potions of Healing. Other innovations include the use of small, harmless oozes to clean wounds and prevent infection. The Daughters of Sora Kell fund and support Zornel's research, and this has largely paid off for them.