The Dead Are Living

This is a world where the earth exploded to bits. The only thing left is a few pieces of land and ocean, tiny in comparison to the rest of the earth, and what it used to be. Now a smaller core of the earth has been created, ad these pieces of land float around it, called contimets, are to go in it eventually. On no contimet in particular, there is fresh water, there is 4 zones of land including the frozen desert, where the sand dwellers live, the jungle, where the new cave men simply exist, the plain-lands, where bandits rule, and the ruined city, where mutants roam freely. This is the perspective of four people from this contimet.