The book "The Great Mystery of Dorothy Dale" continues the exciting adventures of a young heroine who always finds herself in exciting situations. Dorothy Dale is a brave and intelligent girl who is always ready to save her friends from danger. In this book, she faces the biggest secret of her life, one that could change everything she's ever known. Author Margaret Penrose gives readers an exciting story full of adventure, friendship and unforgettable moments. "The Great Mystery of Dorothy Dale" is a book that will definitely charm both young and adult readers with its unpredictability and warmth.