Witch's Skin

While cleaning the attic in her inherited old house Suzi finds a secret room containing a shelf full of mysterious items and a shrine dedicated to a murder trial from decades ago. The room also contains a booby trap, a spell that compels her to don the long-dead witch's skin like a garment.
A slightly different version of this story appeared in Tales Of The Talisman, Vol.4 #4, Apr. 2009.