Twilight wakes up one day to discover that everypony in her life has up and disappeared. The only clues she finds are carved into the side of her Crystal Castle, And even then she's unsure of where it will lead her. Will she find her friends, or be alone again?

Will Trixie and Starlight come back in time themselves to help her, or will they too vanish?

And to think all this began after reading a simple Note.