NWC as I understand it, is a collaberation of different traditions of Wicca, and not one specific tradition it's self. This group works to keep Wicca as it should be, mystery and oath boud. The olde laws, or ardane state:
161 laws
So it be Ardane, that none but the Wica may see our mysteries. .....So it be Ardane that no one may tell any not of the Craft who be of the Wica. nor give any names, or where they Byde, or in any way tell anything which can betray any to our foes. Nor may they tell where the Covenstead be. or where is the Covendom. or where be the meetings. or that there have been meetings. And if any break these laws, even under torture, The Curse of the Goddess shall be upon them, so they never be reborn on earth, And may the remain where they belong, in the Hell of the Christians.
Now I'm speaking as a seeker here. Upon seeing this quote, I now understand why what is written can not be Wiccan. There are no mysteries, and the author would have been condemed to hell had they broken any of their oaths. So, can it be said that Wiccans do indeed believe in the Christian hell, and there for maybe even the entity known as Satan?