This hardcover book titled "The (Super Secret) Octagon Valley Society" by Melissa De La Cruz is perfect for readers of all ages. Published by Disney Publishing Worldwide in 2023, this 320-page book is a work of juvenile fiction with elements of fantasy, magic, action, adventure, and mysteries.

With a length of 8.5 inches, a width of 5.8 inches, and a height of 1 inch, this book is compact and lightweight, weighing only 15 oz. The book is in English language and has an intended audience of ages 2-3, 4-8, 9-12, and under 2 years. This hardcover book format is perfect for collectors and readers alike.