We only read about Hades in mythology. According to mythology it is heaven in the sky and the abode of gods. But underground is the underworld, where demons live. But is there really such a thing, does Hades really exist beneath the earth? No one knows about it, but there are many things on the ground, which look like it is a path to the underworld. No one dares to rush into them. These are nothing but large sinkholes formed between the earth and the sea. Some are hundreds of feet deep and some are thousands of feet deep.
