Hi Cassandra,
haven't mentioned yet how much I love your handle. Cassandra is my favorite Lara Parker character on the show, and one of my all time favorite DS characters, period. I love her clothes, her wigs, her look, the way she swings wildly between smug complacency and rampant hysteria. She's such fun.
The 'five point medallion" Magda and Beth used to protect themselves from the werewolf attack is called a Pentagram. It is very ancient. Members of an ancient Greek society called the Pythagoreans (after the philosopher Pythagoras) first used it. The standard explanation is that the five points of the star represent the 4 elements harmoniously interacting with human beings to produce a dynamic balance in the Universe. There are several esoteric explanations behind the use of the five pointed star by modern day Pagans and Witches. Unfortunately, a lot of people think of Satanism when they see the Pentagram.
Sorry for nattering on,
Steve