This is a vintage Nancy Drew mystery book, numbered 41 in the series, titled "Clue of the Whistling Bagpipes". The book was written by Carolyn Keene and published by Grosset & Dunlap in 1964. It features the famous teenage detective Nancy Drew, who solves a mystery involving bagpipes and a lost family fortune. The book is a hardcover edition, printed in English language, and was manufactured in the United States. It belongs to the category of antiquarian and collectible books, and is perfect for fans of the Nancy Drew series and mystery enthusiasts.