What you do when you're young may have consequences half a lifetime later. Knowing yourself can be difficult, especially for Anne. Extending your boundaries and seeking new horizons can take many forms, whether you are young or much older.

Although happily married, Anne emulates a character in a book called The Sandy Shore and embarks on a new, illicit romance which is enjoyable at first but rapidly turns sour as she finds her old boyfriend from the navy is not as he seems; he is as rotten as her navy friend Naughty Christina always said he was. The fling has its consequences, not least the excitement of getting involved in cold war espionage. She uses the book as a diary and confidante that helps to clarify her thoughts and she even names it - Book. Anne views the book as more than just a piece of light romance.

Like a sandy shoreline, our lives can appear ordinary as the tide ebbs and flows each day but then a storm can wipe away everything in the same way that a life can change dramatically from one minute to the next.

Many years later, Anne is urged on by Christina to find romance once more. The milkmaids are stimulating, but displeasing Mamma could have very dangerous consequences - when good spies go bad. Who is watching them? Who knows what tomorrow may bring? How do we know what happens to Anne? Who better to tell you than Book? After all, he became her almost constant companion, but is now just a book in a museum library.