...drops of Ofelia's blood spill onto the altar that is supposed to lead her into the underworld. Ofelia is reunited with the king and queen of the underworld.
The Queen of underworld seems to be Ofelia's mother in the mortal world and she is holding a baby in her arms. All of them (Ofelia, her mother, and her father) are dead by that time, except her new-born brother. If those people in the underworld are all dead, why is her mother holding her alive son?
I'm really confused about connection between people in the mortal world and the underworld. Shouldn't they be dead to be in the underworld or is it a complete other world with different people from the mortal world?