Those people did not have a vision of hell from God,for if God wanted us to know about hell in detail,He would of had it in the Bible,like John gave us a revelation of heaven.
The Bible told us all we need to know about hell,it is dark and hot,and what detail is there to know for it is dark and hot.
Jesus said if they do not hear the word of God they will not believe if one rose from the dead and told them,why does there have to be people writing books about hell,when the Bible tells us it is hot and dark,should that not be enough for them to fear and do right,and believe the truth to escape hell.