Part of Daud wants to shake Billie off and tell her he's the least of her worries right now, but time and efficiency demand his energy be spent on other things. 'What kind of curse' is a difficult question, though, and he tries to think around the pain, gritting his teeth.

"Einjar's spring was tainted with something," he grates out. "Something that wanted death. Touching it made a sound that drove those who heard it to fight. I heard the same sound inside the wolf's head." Best not ask how he managed to get in there in the first place. Given there are no visible bodies of water in the vicinity, though...

"Water magic could cleanse it before. Anything used for purification might."