The product is a vintage hardcover children's book titled "Key to the Treasure" by Peggy Parish, published in 1966 by The McMillan Company. This novel, intended for young adult readers aged 9-12, is a part of the Weekly Reader book club Edition and features illustrations by Paul Frame. With a genre of action & adventure and mysteries & detective stories, this 154-page book is a classic addition to any young reader's collection, offering an engaging narrative in English language.