Powerful, nasty, and sometimes even deadly, demons are the very face of evil. Stories of these beings-and the terror and ruin they inevitably bring-have existed in nearly all eras and all cultures. Despite these cautionary tales, some people seek contact with demons out of curiosity or a desire for personal gain. Others claim to have been victimized or even possessed by demons through no fault of their own. It seems that demonic encounters-or at least the idea of them-are just as common today as they were in ages long past.