The Blue Lagoon Book I by Henry de Vere Stacpoole - Free

Published in 1908, The Blue Lagoon was an instant success. The story unfolds as a naive young girl and her cousin are stranded on a remote island. As a modern day Adam and Eve they age, fall in love, discover sex, have a child and learn the basics of living in a loving relationship as adults on a beautiful remote island. Several sequels were written and the novel was later adapted to a stage play and a movie starring Brooke Shields.