What did the underworld look like?

it looked painful and suffering,the god of underworld was named SUPAI. Hevwas very greedy.His job was to rule the underground world and was the leader of a race of demons.He was very greedy meaning to being wealthy.The incas sacrificed over a hundred children a year to Supai and still he would not leave them alone. the underworld was called uka pacha. check it out in the inernet.