Crossroads Demon

Well, she is a deity, but not a Goddess, she is from the generation before the Grecian Gods (Look at the very long family tree)

Crossroads Demons/Entities are very risky. They always ask for a payment. Said payment varies, but souls are common due to the vast amount of energy souls possess (similar to 1,000 suns). If you can offer something equal to that or better, like years of service, then please do at your own risk.

To summon one you'll need:
A dirt crossroad (one that forms a "+" is best, but a "T" one will do)
Nighttime
A small container (like a metal pencil box)
A photo of yourself
Black Cat Bone Root (see the SoM Shop), or Black Cow Milk
Graveyard
shovel (unless you want to use bare hands)
A yellow flower (optional)

Place items in container. Dig a hole at the exact center of crossroad large and deep enough to fit the container neatly. Bury the container. Wait for the entity. (Saying a general demon conjuring in Latin may help.) Be respectful when they arrive. They are at a higher spiritual level than humans after all.