Satanists holding an open dark mass on 08.12.12 relatively near.

[Sagittarius]

Honestly if you feel like going then go. Worst case scenario is you have a laugh and go home. Could be interesting and may even provide more perspective and experience. If you were invited I would take that as a sign that there is an opportunity for you there. My guess is you could provide catalyst for the others there. Sounds like a service opportunity to me.