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. How do you want to spend your vacation? Relaxing on a beach, whitewater rafting, at the carnival in Rio? Dream about your perfect vacation as you read Use your unique code inside the book to access the online reader, complete with videos and interactive exercises. Word count: 1511. Lexile Reading Level: 630L.