The message of the last book I read for book clubs, Elsewhere, was enjoy what you have because you will never get it back. Liz died and then went to Elsewhere. She kept regretting missing out on things back on Earth like her best friend Zooeys' wedding. Eventually Liz learned to enjoy life on Elsewhere, with the help of her grandma Betty and Owen, because soon it would all be gone and she would be a baby again.