Possessed bus with skeleton people inside of it in the desert that never stops going. One skeleton in the bus never stops singing opera music. Skeleton people called Calavera are the souls of the dead in tangible form. They walk among the living and never stop what they were doing in life. They do not interact with people and are unphased by what happens around them. The world is called “Tierra,” rather than “Earth.” It has one central mega-continent and many outlying islands.