A perfect novel for science geeks of all ages.
Brilliant geologist and his apprentice/nephew discover, de-crypt, and then, with their imperturbable guide Hans, follow the directions in a Renaissance manuscript
that describes how they can travel to the center of the Earth.
My 12 year old warns that the "old-fashioned" language might be off-putting to some, but that the story is so involving that it pulls you along. For young readers, you might want to start by reading the story aloud, or listening to the audio book.