Although One contains strong elements of science fiction, at the end the author tries to make us believe that it was all a reality. For example, after Leslie and Richard return from their three month adventure in a different dimension, they are convinced that it was all real, even though time was the same as it was in the moment they got lost. Later on, they decide to let people know what has happened to them. In an upcoming conference of researchers of creative thought, science and consciousness, they announce the message they found out, “everybody is aspect of everybody else because consciousness is one and the future of the world is subjective and we pick what is going to happen to the whole world by what we choose to bring true for ourselves.” This message appears at the end of the book and summarizes the journey and discovery that they have made. They feel the need of educating the general public on the truth that has been revealed to them. Differently in Illusions, the final chapter turns out to reveal a shocking and unexpected end to the story. Richard, who learns from Donald, likes to challenge him with his witty thoughts. One day Richard reveals his thoughts about Donald’s mission in life and why he does not want to be a messiah anymore. He says that Donald is dependent on the people whether they are interested in his messages or not and it means that his happiness depends on somebody else. When Donald realizes this, he knows that his mission in life is over and he will soon die. Certainly enough, the following day Donald is killed by an unknown person. Richard doesn’t understand what has happened and in his state of depression he opens the Messiah’s Handbook and reads, “everything in this book may be wrong.” This is a surprising end of this book, and just epilog tells us that Richard continues in selling the flights and tries to forget his past and friendship with Donald. We can see that these two stories have a few similarities. Some of them are the airplanes used in both stories and Richard, who is one of the main characters that appears in the books. This makes us believe, that the books were at least partly autobiographical. Because the books were written by the same author and the main ideas are very similar, there aren’t too many differences. The main one is at the end of the book where the mission of the characters in Illusions seems to be complete. Unlike the mission of the main characters in One which starts to take place at the end of the story.