What is the correct answer to this question: \nأيُّ كتاب من سلسلة "هاري بوتر" لم يظهر فيه "دوبي" الجني المنزلي؟
The correct answer to the question is Harry Potter and the Sorcerer's Stone, Harry Potter and the Prisoner of Azkaban, Harry Potter and the Half-Blood Prince