"Dave Porter on Cave Island; or, The Mysterious Task of a Schoolboy" is an exciting adventure novel by the popular American writer Edward Strathmeyer. In this book, the main character, Dave Porter, finds himself on the mysterious Cave Island, where he has to face dangers, solve puzzles and make important choices. Will Dave be able to successfully complete his mission and find a way out of the tangled maze of caves? This exciting book will not leave indifferent any fan of adventure literature!