Skin Walkers

OK now the walker in Briggs books are not the same as skin walkers. Skin walkers are evil creatures. They use the skin of animals to become that animal. They can become pretty much any animal they wish. It's a magical sort of spell usually cast by a witch. They are even more dangerous then a were creature except you wont become the animal the next full moon if you are bitten or scratched. You don't see them often in books cause it's hard to find them and they are very very rare. I mean how would you know that the panther in front of you was indeed a skin walker unless you look for the zipper.