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. Why have these slow, half-shelled creatures fascinated so many cultures around the world? Discover things you never knew about the history of the turtle. Use the unique code inside the book to access the online reader, complete with videos and interactive exercises. Word count: 2673. Lexile Reading Level: 1010L.