You're treating a sick dragonborn that's been plagued by an unknown incurable illness, and unfortunately, you've done the same to many others. This illness is an enigma to the Hidden Draconix Clan, considering that the dragonborn can't get sick in the first place.

Your older brother and chieftain, Orokoxi, is with you in your House of Healing, his arms crossed. "Tch, this damned disease, what can we do to stop it?" You know the answer lies outside the clan, but your brother won't let you leave.