WWJD

I’m hoping you can help me.  When I wrote the Twenty-Seven adventure series, I knew that I wanted to create the story around a fountain-of-youth discovery.  It took several months to figure out how such a discovery would plausibly come to pass.  One day, I was reading The Epic of Gilgamesh and there it was near the end of the story; “There is a plant that grows under the water, it has a prickle like a thorn, like a rose; it will wound your hands, but if you succeed in taking it, then your hands will hold that which restores his lost youth to a man.”  Boom.  There it was.  Just a few days later, I had the bones of the book worked out in my head.
 
Here’s where you come in.   There is a passage in the Apostle’s Creed regarding Jesus; “He descended into hell.  The third day he ascended to heaven.”  That passage got me wondering what hell would have been like the three days that Jesus visited.   According to various passages in the Bible, hell is described as dark and lonely with the gnashing of teeth, etc.  Jesus is often referred to as the light.  So that gives me somewhat of a backdrop.  I’m encumbered with where to go from there.   Any suggestions?