Sister Bronwyn left her mountain home of Rockhearth Hall forty years ago after a plague swept through the lower tunnels and claimed two hundred dwarves, including her younger brother. The clan's priests were overwhelmed, and Bronwyn — then a simple stonemason — watched helplessly as her people died for lack of healers. She swore an oath that day to devote her remaining years to the healing arts, and journeyed to a human monastery where she trained in divine magic and herbalism. For decades she has wandered the frontier, treating wounds, curing diseases, and blessing harvests in villages too small and poor to support a temple of their own. She arrived at the Keep on the Borderlands after hearing reports of increased monster attacks and soldiers returning with wounds that festered unnaturally, suggesting dark magic at work in the Caves of Chaos. The Keep's small chapel welcomed her warmly, and she now tends to the garrison's wounded while preparing to venture into the caves herself to confront whatever evil is corrupting the land.