“Exactly,” said Billie, in leggings and a long-sleeved shirt. She handed me leggings and a t-shirt too. “The silver masks their presence to wolves. We never would have been able to detect them. But Gavin told me he and Catrina used to come to the mine, which made me think the Hexens aren’t afraid of going there. Aislin and I decided to check it out, just to see, and if we found evidence of them there, we’d go back and tell everyone.”

I pulled on the clothes Billie gave me. “If we ...