My Little Pony: Friendship Is Magic Season 8 Episode 22 - What Lies Beneath Episode Title:What Lies Beneath.Episode Description:The Young Six's worries over an upcoming exam are worsened by Cozy Glow's comments that friendship goes against the non-pony students' nature. A light shining from a floor grate in the School of Friendship's library leads them to a network of caverns, where an image of Twilight Sparkle puts them to a series of tests that they must pass in order to escape. Each student is confronted with his/her worst fear, but they help each other to overcome these and prove to the phantom Twilight – actually the Tree of Harmony – that they do understand the nature of friendship. Once they return to the library, exhausted from the night's adventure, Cozy Glow apologizes for her earlier words and arranges for them to get an extension on their exam.