Cambridge Discovery Education Interactive Readers are the next generation of graded readers - captivating topics, high-impact video, and interactive exercises designed to motivate and engage. Gold is valued by many cultures for its beauty and durability, but things can get ugly when gold is involved. This reader examines the long and troubled history of gold in different parts of the world. Use the unique code inside the book to access the online reader, complete with videos and interactive exercises. Word count: 2499. Lexile reading level: 630L.