All aboard the friendship train! Puff alone with Thomas as he finds a way to make his best friend Percy happy. This Tag™ Junior board book springs to life when you touch Tag Junior to any part of any page. More than 24 playful activities and 130 audio responses encourage little ones to explore while helping build confidence with books. Parents can connect to the online LeapFrog® Learning Path to see their child's progress and get printable activities to expand the learning! Suitable for children 2-4 years.