A book, the "Maris Somnius" has finally arrived in Twilight Sparkle's library. She opens it as soon as it falls into her hooves, intrigued by the odd and cryptic writing. Twilight soon reads word after word, page after page, ignoring the time flying by. She soon finds that that she can't be drawn away from the book, even in her sleep.

In her own dreams, Twilight stares into the mirror bleeding a reflection of herself. Struggling to hold onto her sanity, she learns more about who her "friend" truly is.

Written for the "Nightmares" prompt of the MLP-WTG on dA.