The Untouched

Based on my imagination and facts I found off the web:

I got a letter in the mail a while back. My uncle wrote to me. Which was rare. He explained that my grandfather did not die by going missing on an expedition, he died by tribesmen. Him and my grandfather discovered a remote people on an island way off the coast of India. What I wasn't expecting was my uncle asking me to finish their research with my cousin, Micah. We had to go to India, and finish what my grandfather started.
In the letter was a small package, in which I found a small notebook. In it, were entries from a long time ago, about the early/mid-1900's.
I read the notebook a lot at the time. I constantly tried to decipher the codes and coordinates, but failed. Eventually, I gave up. Until recently, when I found the notebook hidden away in a moving box in my attic. Maybe I would finally finish my grandfather's dying wish.