An all-new step 3 leveled Reader that is based on Nickelodeon's Rugrats! Susie, Chuckie, and Tommy are ready for a fun day at a sci-fi convention with their dads. But when they think they find a famous space villain, they end up having an out-of-this-world adventure. Both girls and boys, 5 to 7 years old, who are fans Nickelodeon's animated series Rugrats will love this hilarious step 3 leveled reader. Step 3 readers feature engaging characters in easy-to-follow plots about popular topics. For children who are ready to read on their own.