As soon as the door closed behind her, Twilight moved Rarity up to her room.
"I can't possibly thank you enough for letting me stay here, Twilight."
The lavender unicorn smiled at her friend.
"Oh, it's no problem! I just hope you can get enough sleep while I'm fumbling around in the library."
The white unicorn looked at her friend in surprise. "Fumbling around? At this hour?"
Twilight returned the surprise with a look of seriousness. "You and I both heard Ditzy Doo. There's a Seventh Element of Harmony. I'm going to go through my Almanac of Legends to find it. Or any legend I haven't heard of."
Rarity nodded, understanding completely. "Good luck, Twilight."
Twilight simply nodded, focusing, Spike's snores the only other sound pervading the silence as Twilight walked down the stairs, hooves lightly clopping on the wooden steps.
Legends...Legends...aha!
She opened the dusty book, immediately flipping back to the page Spike and Twilight had been at before the vision. It was still blank. She went to the table of contents, determined to find what she didn't know.
Raise of Discord...Defeat of Discord...The...The Golden Warrior?
Twilight looked at the name, intrigued. She flipped to the page, its number written next to the curious legend name.
Its first line read as such:

Twilight Sparkle started at the mention of the Seventh Element of Harmony, reading the rest of the passage. She struggled to pronounce the strange name, the 'ø' giving her halt.
The lavender unicorn's purple mane shook at the same time as her head. She read on, eager to see what the book had to reveal.
-------------------------------The Legend of Gylden Glør (as in Twilight's Almanac)-----------------------------------
The Golden Warrior arrived upon the winds of the night,
His steel wings whispering the darkness of his coat,
His ebony horn glowing as gold as the stripes upon his coat.

The Golden Warrior walked out into a world of Chaos and Discord,
Onto a battlefield between good and evil,
His breastplate and cloak of fire burning as hot and as passionate as his soul.

Thus is how the great Guardian presented himself to the Princesses,
His horn awash with light,
His wings thrumming with energy.

Thus is how Gylden Glør, the Guardian of Harmony appeared to the Sun and the Moon.
He fought bravely, loved the shunned;
He beat back the forces of Chaos, and he used his Harmony to recreate Reality.

Upon the final battle with the deity of Chaos, the Guardian of Harmony lost his life,
But not in vain, as he gave his Harmony to the world,
Created the Six Elements of Harmony,
And Sacrificed himself to become the Seventh Element of Harmony.

When the tendrils of Chaos extend into the world for a third time,
It is said that the Seventh Element of Harmony shall present itself,
Not only to the Sun and the Moon,
But to the Dreamer as well.

And that He who Wields the Seventh Element of Harmony,
Shall be Kind,
Honest,
Loyal,
Filled with Laughter,
Generous,
And able to perform the greatest feats of Magic.
-----------------------------------------------------------------------------------------------------------------
Twilight stared at the seven passages, enlightened and confused.
So, the Seventh Element of Harmony has existed before...and there's some hero named...Guile....den...Glower...? And he wielded the Element of Harmony, and split himself into the other Elements of Harmony...and he was a...
She gasped, realizing what the legend was.
He was a Zebra!!
She turned around, bolting out of the house at top speeds, warranting a confused look from Rarity.
Maybe he's also a legend in Zecora's homeland...maybe she knows more about him!
The lavender unicorn's purple mane glistened in the moonlight as she ran towards the Everfree Forest, not aware of what had transpired at the house of a certain mail mare...
-------------------The Dreamer-----------------
The grey Pegasus tried to sleep, in vain.
Her Eye of Dreams glowed all too brightly, reminding her of her long, sad life.
She gave up her attempts at sleep and sighed, opening the eyelid that concealed the Eye of Dreams, allowing it to suck her centuries into the past.
There she stood, besides the Guardian.
"Ditzy Doo...I'm afraid."
The grey Pegasus put a hoof on his shoulder.
"Don't be. I'm here for you, Gylden."
The Zebra looked deep into her eyes, a tear shining on his cheek.
"But...if what she said is true...you'll be cursed with the Eye..."
The grey Pegasus steeled her nerves.
"A burden I will gladly bear, especially if it means I can help you."
Gylden Glør blinked, and smiled.
"Thank you, Ditzy Doo..."
He inhaled, and exhaled, steeling his own nerves, his metal wings scraping each other, his ebony horn glowing with a golden aura.
He cried out, calling for his foe to face him in the Darkness.
Ditzy closed her Eye, crying, not wanting to remember what Gylden had done for the world...
A sudden knock at the door brought her back to reality.
She opened the door, and couldn't believe her eyes.
There, before her, was Gylden Glør.
"G...Gylden..."
The Zebra walked in, wisps of corporeal nothingness in his wake.
"I cannot stay here for long, Ditzy. This form is more than difficult to keep..."
The grey mail mare's Eye of Dreams glowed even brighter, staring down at the floor as her normal eye stared at the image before her. She extended a hoof towards the transparent apparition.
"Do you remember what I told you the day I first met you, Ditzy Doo?"
The mail mare closed her eye, but not her Eye, crying as her hoof passed through the ghost.
"You told me...that I had beautiful eyes..."
"And you still do."
Ditzy opened her eye, the Eye already opened.
"How can you say that? I'm a freak..."
The apparition tried to reach for Ditzy Doo, but cried just as hard as his hoof passed through her.
"Because your eyes were beautiful before you Dreamed, and still are now that you have Seen."
She smiled, still crying, a pain in her chest rising as she remembered that she could no longer be with Gylden...
"Ditzy Doo, I must go now. But I will tell you several things before I do..."
He swallowed, invisible tears streaming.
"One...the Seventh Element is coming back.
"Two...Celestia is on her way.
"Three...Twilight Sparkle knows about me, but not fully.
"Four...don't tell Twilight about...me. I know, she knows already, but don't tell her any more than she already knows.
"Five...I'm sorry.
"Six...you're beautiful.
"Seven...I love you. And I always will."
Ditzy sniffed, hysterically crying, her dreamy voice cracking as she spoke.
"I...love you too, Gylden...then, now, and forever more..."
They looked at each other, and smiled, taking shuddering breaths.
"Goodbye, Ditzy Doo."
"Goodbye, Gylden Glør."
And with that, the apparition dissipated, leaving Ditzy Doo alone with her pain and her tears...
I love you, Gylden...
Suddenly, in the apparitions' place stood Celestia, white coat charged with energy.