Where are the bones of the dragon hanging? What will happen when they fall?

King Krak slayed the dragon.  Nobody knows whether it was really him who slayed it or his servant Skuba, who was supposed to place a ram stuffed with sulphur at the mouth of the dragon’s den. After wolfing down the ram, the dragon tried to put out the fire in his belly with water from the Vistula river (at the time, it was much shallower and flowed a bit differently than it does today). The dragon drank and drank and drank until finally – he burst! Parts of the dragon flew all over – his legendary bones hang above the gate to the Wawel to this day – and according to legend, if they fall, the world will end.