The Dead Pantheon

I'm a psychic medium who can communicate with the dead, though I don't do it for work. I recently came into contact with someone who believed in a pantheon of gods and goddesses. She's been telling me about her religion and some myths, and I've been doing my best to piece together the mythology. I've started calling it the Dead Pantheon because I can't find information about it anywhere. I don't know how old this religion is, as the woman cannot remember when she was born or died. I'm using this platform to document everything I hear.