A party : o`#f )/arc!\!;haeol;/ogists di^: sc;overs the -+ remn ` ants of ?a mutant five-millen+#!nia-old- Sumerian$! ci.[(vilizatio+!;n li*vin,@$;g beneath a glacier ]%atop + a moun tai:%n i=,# n Mesopo;tamia.