Into thin air

So, so, so... i am still in Vilnius. I finally finished the book "Into thin air", which I was waiting for a long time to come all the way from somewhere in USA (initially recommended by lady we met once we traveled in the mountains, who said she climbed Everent til the base camp (6500 meters), wow!). I was so excited about it that started to read immediately after i received it. And it was good. What was not good is my knowledge of English. I met many unknown words. How could I be so naive and think that my English was so advanced!