Each part of the sentence hints at a different symbol on a pie chart. Chernobyl: the radiation symbol. Egypt: a pyramid. Arcade games: Pac Man. Put the letters together in sequence for the solution.
The first initials of the titles of each book are ISBN. You must search the ISBN hidden across the spines to discover a book title that is also a date, and then look up the winner of the Nobel Prize for Literature from that year.
Use the phone number you used for puzzle 14, but this time with the new arrangement of the buttons. You can discover the new numbers from the clues: square 16 (256) and Pi (314). Arthur's new number is 43512.
The correct answers to the puzzles in each room will point you to the correct door forward and finally the exit. The answer is a word made up of the letters of each door you open, starting with 'A'.
Fold the paper like an accordion and look it from each side - it reveals a phrase. Next, delete the letters from the next page according to the NATO alphabet.
Place your nose on the paper on the black square of the image. You should encounter the illusion that the | from 831 and the - from -65 have transformed into a +. Do the sum!
There are hidden numbers in the word CONFIDENTIAL throughout the book. You must search for them and complete the word with the GFID codes at the bottom of each page.