Light beamed through Princess Luna's window and onto her deep, blue face. Celestia's sun shined into her bedroom, gently waking the princess from her sleep. Luna rose from her bed confusedly, and made her way to her chamber door. She opened her door with the use of her magic and sleepily walked right into her sister.

"Good morning, sister." said Princess Celestia, lending her hoof to help Luna off the floor.

"Good morning. Why didn't you wake me to lower my moon?" asked Luna. "I only wished to take a short nap."

"It's fine. I didn't wish to disturb you. Today is your special day and you deserve to sleep."

"Special day?" asked Luna in confusion.

"It's been five years since Twilight Sparkle reunited us." said Celestia, snuggling against her sister's neck.

"Has it really?"

"You really didn't remember?"

"I try not to think of my time in exile." said Luna uncomfortably. "What is on the royal agenda for today?"

"Nothing. I have Prince Blueblood and Princess Cadence dealing with your duties. You have the entire day to do what you wish, until the celebration tonight." explained Celestia.

"Could… Never mind."

"What is it, Luna?"

"I was just going to ask if we could… spend some time together?" said Luna sheepishly. "It's been awhile since we had some time alone, and I would like it very much if we could do something. Like the old times, before I… well, you know."

"Of course, sister." said Celestia with a smile. "How would you like to go for a little walk?"

"That sounds quite wondrous!" exclaimed Luna.

"Fantastic. Meet me in the courtyard when you're ready." said Celestia, leaving her sister's room. Luna closed her door and went about her normal morning routine. After she brushed her mane and teeth, she used the bathroom and washed her hooves. She exited her chambers and was swamped by her two main bodyguards. They walked with her through the long corridor and down the winding staircase. They escorted her to the courtyard, where Celestia was already waiting. Luna dismissed them with a nod and she began her stroll with her older sister.

"Are you alright, Luna?" asked Celestia. "You seem concerned."

"I'm sorry, sister. I've just been thinking." said Luna.

"About what?"

"My betrayal. Not a day goes past where I don't think of it. I'm so sorry for what I've done, Tia."

"You mustn't keep blaming yourself. You made a mistake a thousand years ago, Luna. I've forgiven you, and it's time you forgave yourself." Luna was about to respond when she felt a strange shudder in her chest.

"Did you feel that, sister?" asked Luna. "I sense a great evil."

"As do I. Should I alert Princess Twilight?"

"I fear that this will be too much even for her." said Luna. "I think we should first understand what we're dealing with."

"Princess Luna! Princess Celestia!" cried a guard, running at full gallop to the two princesses. He stopped to bow, then continued his shouting. "A blanket of shadow has engulfed most of Southern Equestria! We just lost contact with Appleloosa! We're not sure what it's doing just yet, but everything it touches seems to fall off of the map!"

"Have you found the source of this shadow?" asked Celestia.

"No, your highness, but we have reason to suspect that it is coming from Tartarus itself."

"Thank you for informing us. Please, send squads across Equestria to move populations that are in danger of the shadow." said Celestia. The guard saluted then ran off to fulfill his duty.

"Could it be... Hades?" asked Luna.

"He would be breaking our alliance, but I suppose it's possible." said Celestia. "We must send somepony to find him and put an end to this."

"I will send a letter to Princess Twilight and her friends." said Luna.

"No. We cannot send Twilight to Tartarus. It's far too dangerous."

"But if not Twilight, then who?"

"There is only one stallion who can help us. We must prepare the song." said Celestia. Luna nodded in agreement and cleared her throat. She hummed a soft, light-hearted tune and waited for her sister.

"Be it me or be it you, we are birds of a feather. We will fight or we will fall, we will stand together." sang Celestia. Bright, neon turquoise light began to envelope her horn, signaling Luna to continue the song.

"Be it you or be it me, we will stand taller. We will fight or we will fall, but we will never falter." returned Luna. A bright lavender light began to emit from her horn, pulling her towards Celestia.

"Be it us or be it them, fire burns within us." they sang together. "We will fight, bring us the one, who blindly serves the princess."

Both of their horns shot light forward onto the floor. The blue and the purple melded together, singing all the time. The song bounced through the courtyard, without a source, and rang in the ears of the princesses. The singing seemed to flow with the wind, eventually gathering in a single spot. The music grew louder, and slowly into view faded a unicorn stallion. His coat was bright, electric blue and his long, windswept mane was also blue, but with a bright lavender surrounding the edge, like a neon flame. His eyes were just as bright as his coat and had an odd glazing to them, and the features were almost indistinguishable. He solidified as the song died down, and he dropped down to a bow.

"Lady Celestia. Lady Luna. Why have you summoned me?" he asked, his voice deep and guttural.

"We believe that Hades is spreading a shroud of shadow across Equestria." said Celestia. "It is up to you to find him and stop him."

"What is this shroud doing, your highness? Is it corrupting the land?"

"That's just it." said Luna. "We do not know what it is doing. Perhaps you should find out before you rush to Tartarus."

"Of course, milady." said the unknown stallion. "Can you assist me in learning my appearance."

"You're bright." said Luna. "Coat is turquoise, as are your eyes and part of your mane. The other part, around the edge, is purple."

"My Cutie Mark?"

"Well, the shield is there, same as ever." said Celestia. "On top of it is a sort of shock wave of bright, neon, rainbow colors."

"What music is that?"

"One of the most popular forms of music in these days is known as dubstep."

"I see. Dubstep. I've heard of it, of course. I will begin my quest as soon as I've gathered my supplies, your highness." said the stallion. "Dubstep. I think the name "Wub-Wubs" fits. Yes. A little goofy, maybe, but I do like it. Sir Wub-Wubs, at your service."

"Would you like for me to repair your sight?" asked Luna.

"If you absolutely must, milady, but I would prefer if you left me blind." said Sir Wub-Wubs.

"Why is that?" asked Celestia.

"A multitude of reasons. To show my allegiance to you, for one. Another is that I do not trust my eyes. Dark magic can easily distort your vision, but it's harder to affect the ears. But the main reason, honestly, is because it's much more challenging."

"Are you sure you will be able to complete this quest without your sight?" asked Luna.

"Of course, Lady Luna. When may I begin?"

"Right now, if you would. Your blade is above the entrance. I take it you still remember the song?"

"Yes. Any last words of advice?" asked Wub-Wubs.

"Trust only that which you can see." said Luna. "If you cannot see, trust your ears."

"If you cannot hear, trust your heart." said Celestia. "And if you cannot love, then all hope is lost."

"Yes, miladies. Thank you for your wisdom. Farewell." said Wub-Wubs, trotting towards the castle. He left the princesses in the courtyard and travelled through the halls, weaving between guards with the dexterity of a seeing stallion. He held his head up high with purpose, as if everything else was insignificant when compared to his quest. The guards looked at him oddly, staring at his eyes. Nopony was sure how a blind stallion could move so well. When Sir Wub-Wubs finally arrived at the castle entrance, he looked up at the stone door and began to whistle. He whistled a sharp four-note tune, emphasizing the last note with an extra-loud whistle. Out of the brick melted a sword hilt with no blade. He took the hilt and placed it against his hip. A sheath and strap melted from the hilt and attached itself to Sir-Wub-Wubs.

"My first quest in a thousand years begins now." he said to himself. "With the fate of all of Equestria at stake. Lady Celestia, Lady Luna, guide me."