In a dark abyss, Twilight looked around for any sign of anything come, but so far only darkness. She then proceed to walk around the hallow abyss until she saw something that she thought that it come from the mirror world she went before : a young girl with a white dress and a white hair.
"Who are you?" she asked only to nothing came out from her who she then stared at her with a neutral expression.
"Why are you here?" she asked him again only the same result.
Then the mysterious girl smile at her and begin to speak in a tone that somewhat similar to Princess Celestia, "You are the one."
"Huh?" she tilted her head in confusion.
"You are the one who can help him; To find what he lost in those memories." she explained.
"Him? Who are you talking about? Who is that colt or stallion are you mention?!" she frantically asked her but she ignored her and kept explaining more.
"The book cannot be open by mere magics; It can only open by the trials that he faced with you and your friends. However