This book is mostly about science facts and adventures. Harry Lawson is the narrator who is learning science under his uncle, Professor Von Hardwigg in Germany. One day they find a book written by an Icelandic historian from the twelfth century. They find an old parchment written in runic language. They discover the path to the center of the Earth.

What follows is an incredible adventure as we see them head to Iceland, to an extinct volcano with the help of Hans Bjelke, their tour guide. What happens next? What will they discover? You must read to find out.
According to me, anyone who is above 10 should read and enjoy this book. I would like to give this book 5 out of 5 stars.
Did you know the book was adapted into a movie by the same name in 2008? Check it out!
