What difference can one person make to the world? Is it worth following dreams that seem impossible? Or taking on challenges that seem too great?When Ellen MacArthur set sail on her solo circumnavigation of the globe in 2004 it was the culmination of a lifetime's love for the sea and the fulfilment of an ambitious dream. As a toddler she had begun a love-affair with sailing that would see her save every penny of pocket money to buy her first boat. Aged just nineteen, she was to sail her second boat, Iduna, around the coast of Britain single-handedly. It was the first of many astounding achievements.She went on to face incredible trials - from towering waves and months alone at sea to the years of uncertainty as she struggled for the support - financially and emotionally - to follow her goals. But nothing would match her next challenge.In 2009 Ellen gave the shock announcement that she would be turning her back on sailing to focus on raising awareness of the issue of sustainability. How would the century's greatest sportswoman turn her drive and ambition towards the most pressing issue facing humanity?This is not a book about just sailing: neither is it a simple call to arms. It is story about hope and determination, about family and the ties that bond us and drive us, and how one person can make a difference, no matter how small. Dame Ellen MacArthur may be the first true heroine of the 21st century, but her remarkable story and message is one for us all to be inspired by.