The secret ingredient wasn't all that secret. Snake venom.
"Snakes aren't active in winter," Shay said. "Their metabolism slows them down, and they're easy to catch. We have a ton of them in the barn."
I blinked. "With the horses."
"The horses usually trample them if they get too close."
"Usually?" I shot back.
"Ooooh no." Archer moved in behind me and squeezed my arm, hard. "That's an issue we'll take care of. In the meantime, what kind are these snakes?"
"They look similar to the ones we have back home. Black moaners, we call them. We used to eat them."
And that's all the information we had. Wolfsbane for the wolf part and maybe black moaner venom for the human part. The question was would it work?