Prediction

When the group discovers that they are on shore, the nephew makes the most important discover of the expedition.  The dead body of the first guy who reached the center of the earth.  His knife had his name inscribed on it.  Arne Saknussemm.  With that discovery the group decided it was too dangerous and need to find a way out.   Thinking the only way to escape is through another volcano, they try to locate the nearest one.

My prediction is that something is bound to go wrong.  Nothing good has ever come out of a volcano.  I thought that the nephew and uncle would probably get in trouble and the guide would have to save them again.