St Briavel's Island -- what a wonderful new setting for the Chalet School! And how the girls enjoy exploring this beautiful island off the Welsh coast, with its wild cliffs and fascinating bird sanctuary. But Annis Lovell decides to run away -- and what trouble she gets into! When Jo Maynard presents the school with five boats, there is plenty of opportunity for hilarious escapades. But Annis, desperately unhappy, is unable to share the excitement. Feeling unwanted and unloved, she sets out alone on an adventure that nearly ends in disaster!