Why would the empress know where to meet if they took the paper?? If the empress had read the msg then she would had destroyed it, she wouldn't be so dumb to leave the special paper inside the book, assuming that they use a new paper everytime??? And if the empress found no paper this time wouldn't she be worried? Another thing is if the empress had actually read the msg and left it in the book, shouldn't the paper be already wet and the message should already be showing???