CHAPTER TWENTY-FIVE, in which Tom and Huck hunt for buried treasure

CHAPTER TWENTY-FIVE on Project Gutenberg

The blue light Tom and Huck expect to see in the “ha’nted house” would have, in their eyes, indicated the presence of a spirit or otherworldly creature.  European folklore tells of a similar sensation, an ignis fatuus (Latin for foolish fire), also called a Will-o’-the-wisp. 

Your mission for this chapter:

Using this website: http://en.wikipedia.org/wiki/Will-o'-the-wisp, answer the following question: What is the Americanized version of the Will-o'-the-wisp folk story?

Feel like that that's no challenge? Here's another double dog dare bonus question:

The word “hieroglyph” comes from the Greek and means “sacred carving.”  In Egypt, thoughts were first written with hieroglyphics, rather than an alphabet like English or Russian or Greek.  Egyptian hieroglyphs were nearly impossible to decipher as each image could represent an object, a sound, or a concept. 

Use this website: http://www.pbs.org/wgbh/nova/pyramid/hieroglyph/ to answer the following question:

 What discovery finally allowed archeologists to understand this ancient writing?