Oh okay. People were mentioning the Bible in the comments. What folklore? Hobistar1
Likely, North American 1800s; New Mexico or Texas. Skinwalker folklore is deeply rooted in Native American traditions, especially among the Navajo Nation in the Southwestern United States a Nahual (or Nagual) is a human who can shapeshift into an animal.
This was a Bible reference? I’m not Christian someone explain.