How about we DON'T finish the ominous Latin chant?

Penelope is your air-headed goth bimbo friend with an occult paraphernalia obsession. You don't personally buy into it, but if she's to be believed, every day of the year is perfectly celestially aligned to summon some infernal creature or another. Stay sensible and keep her in check, or play along at your own risk. It's your funeral.