Raphael, Leonardo, Donatello, and Michelangelo love battling bad guys . . . until an unstoppable force emerges from deep beneath New York City. Have the Turtles finally met their match? This Step 3 Step into Reading leveled reader is perfect for children ages 5 to 7 who like Nickelodeon's . Step 3 readers feature engaging characters in easy-to-follow plots about popular topics. For children who are ready to read on their own.