Arthur, the longest-running children’s animated series in the history of American television, has ended with its 25th season. Developed for PBS by Kathy Waugh and produced by Wgbh, the series centers on a young aardvark of the same name, and the lessons he learns from friends and family while growing up in the fictional Elwood City.

Arthur’s final episode, titled “All Grown Up,” aired February 21 on PBS and took place 20 years into the future, chronicling the lives of Arthur, his sister D.W., Buster, Brian, Muffy and Sue Ellen in their 20s.

In the flash forward, it is revealed Arthur became a graphic novelist who has just published his first book.

As the group reunites at Sugar Bowl Cafe, the dessert parlor they would go to as kids, Arthur shows the group what he’s working on and they all reveal what they’ve been doing. D.W.