After reading about Daring Do's failed attempt to secure an ancient artifact, Twilight and Rainbow Dash take it upon themselves to find it in her place. Unfortunately, not only do they find it, but by reading a passage from the book, Rainbow Dash accidentally unleashes a curse which causes everyone in Ponyville to speak in puns. This, of course, drives Twilight up the wall, especially since she's the only one who seems to notice.