My Little Pony: Friendship Is Magic Season 4 Episode 18 Maud Pie Episode Title:Maud Pie.Episode Description:Pinkie Pie is eager for her friends to meet her visiting older sister Maud, whom she says has much in common with each of them. When Maud arrives, however, the girls find her to be a dull pony with an unusual interest in rocks and, despite their best efforts, fail to find any common interest with her. Upset by her friends' inability to befriend Maud, Pinkie decides to help them by constructing an obstacle course that combines all of their interests, including a giant pile of rocks for Maud. While demonstrating the course, Pinkie is nearly crushed by a boulder, but Maud rescues her. The girls realize that Maud cares for Pinkie as much as they do; they apologize to both sisters and offer their friendship to Maud over their shared bond, which she accepts.