The Escape From Prison Island

You wake up in your cell and today is the day when you will receive your sentence. Your solicitor has been rather pessimistic about your chances because the crime is one of the worst that society has ever seen. You have, however, pleaded not guilty during the trial, which is in fact the truth, but the circumstantial evidence will probably be enough to produce a guilty verdict.
Now the cell door opens and two burly prison warders grip you by your shoulders, handcuff you and lead you into the court room. The jury have just arrived back from the jury room. "Have you reached a verdict?" the judge asks. "We have your Honour, we find the defendant guilty on all charges," says the Chairman of the jury.
"Very well," says the judge and looks at you. " I hereby sentence you to be placed on Prison Island for the rest of your life. Should you succeed in finding the exit and escaping from the island you are a free man. To find this exit you must use all your literary skills and if you find your favourite book on the island you will learn how to find the final exit. Court adjourned!"