I implore anyone who finds this interesting to read “Lost in Shangri-La.” It’s probably the best non-fiction book I’ve read about the discovery of a untouched tribe in Papua New Guinea during WW2. The coincidences and beliefs that all transpire are so damn fascinating.
Lost in Shangri-La https://www.amazon.com/dp/0061988359/ref=cm_sw_r_cp_api_glt_fabc_AGVBMEXPEN56FFPRDZX6
There's a great book called "lost in Shangri-La" about this.
http://www.amazon.com/Lost-Shangri-Survival-Adventure-Incredible/dp/0061988359
if that interests you, you should read Lost in Shangri-La and Peace Child. Both are great and both took place on Papua.