All aboard the friendship train! Puff along with Thomas as he finds a way to make his best friend Percy happy. This Leap Reader Junior book springs to life when you touch the Leap Reader Junior Book Pal to any part of any page. More than 24 playful activities & 150 audio responses encourage little ones to explore while helping build confidence with books. Parents can connect to the online Leap Frog Learning Path to see their child's progress & get printable activities to expand the learning! Teaches: Friendship Position words Like meanings Appropriate for children aged 1 to 4 years. Please note an internet connection is required to download the audio for this book. Works with Leap Reader Junior Reading & Tag Junior Reading System.