The battle between all four beings brang the surrounding fighting to a stop. Demons and ponies alike stood side by side to watch as the four beings battled it out. The guards recognized the now white and yellow pony, but just couldn't put their hooves on who it really was. It seemed to carry a face of boredom while fighting Nightmare Moon. Her prescence here was more than disturbing. Belforay and Crimson Black were the only ones causing massive destruction to the surrounding areas. Each strike deflected or blocked destroyed a little bit more of the surrounding area, although it seemed that every hit Crimson conected onto Belforay weakened the demon little by little.
"Hmmhmhahaha! It seems that such a "powerful" demon cannot continue when I drain it's darkness."
"What?! What nonsense are you spouting?"
"Didn't I tell you? I'm Silver Dragon's darkness in it's purest form. He never told you that he grew in strength by absorbing the power of demons that he defeated?"
"That is impossible! No such thing can happen! The mere thought of a simple being aquiring our powers is completely-"
"-Preposterous? Then perhaps a wide area entry into the dark dimension reality of this world will change your mind?"
Crimson Black started to create an orb with his right hand, letting the energy leave from his finger tips, but, before he could do anything, Celestial Twilight stopped his hand and cancelled the dimensional anomaly.
"There is no need for that."
"*sigh*. WHY?!"
"Look around. The paladins may have been equppied for that, but these sentient beings are not. They would die in mere moments. I suggest you just deal with the demon in the longer way."
"What about your sparring partner?"
"She is over there."
Nightmare Moon was attached to what looked like half a golem of light. It hold her aloft with two hands and was burning her. It's face was only a helmet with a simple slit as the opening. Celestial Twilight returned to her prisoner, watching and making sure she wouldn't attempt an escape. The possessed Twilight's new mane floated in the wind as she watched over the Mare in the Moon. Something that brought the demons and ponies to awe.
However, Crimson Black didn't have the same feeling about this. He hated her with his entire entity, as did she hate him with her entire entity, but it was a hatred like brother versus sister. He was having fun after waiting for so long, and he would enjoy every moment of it. Belforay struck during the dragon's distraction, causing the being of darkness to be dug into the ground. Belforay struck with the blade of his axe onto the head of the dragon. He expected him to be dead, but a shield of shadows had formed right before the impact point. The dragon looked up with a devious smile.
"What an opponent! But he grows impatient. We must leave this universe at once if it is to heal properly."
"What are you spew-"
Belforay stopped immediately as Crimson Black's hand stretched out from his stomach. The dragon had somehow gotten behind him, and impaled him with it's claw. The dark energies that were leaving his body were suddenly converging onto the right hand that had impaled him, and he started to desintegrate. Celestial Twilight walked slowly towards the impaled demon.
"Crimson Black, I will return to the throne room and revive the victims of this beast. The other demon is over there." she pointed to a heavily burnt Nightmare Moon that laid on the ground in a smoking pile of dust. She was about to fade away and return to her previous form.
"Yeah, yeah. I'll get to her. Hold on."
As the possessed Twilight flew to the throne room, Crimson Black had just about finished with Belforay, who was a pale grey.
"I don't...understand...how...this is possible." struggled Belforay.
"That's normal. You're just a demon, and I HATE demons. Now go back into the underworld."
"NOOO!"
A small orange portal opened in the ground, and out of it came many stringy hands and arms. Belforay found himself dragged back to his "home" despit his protests and attempts to escape his capture. It was all for naught, however, as he was sent back into the abyss from whence he came. Crimson Black walked slowly towards the dissappearing alicorn and stood next to her, a look of dissappointment on his face. Nightmare Moon attempted to speak:
"I never thought...that a being like you... would be a destroyer of demons..."
"There are others from Silver Dragon's world, pony. There are five other dragon species that are much more powerful than anything you can imagine, so I suggest you be satisfied that I absorb your energies."
Before another reply, the alicorn had already been destroyed. The demons surrounding the castle all started to flee, but it was too late. Crimson Black had already sent them all spiraling to the dark dimension. Another version of Equestria this time. It was still too fearsome to look at. A few moments later, and a yellow sparkle returned to the body, bringing grat pain to Crimson Black once more. Silver Dragon reverted to his orginal form. He looked back once more at the damages, but things of such magnitude were impossible to revert. He tore open a rift in the spatial continuity with his claws and jumped into it.
Twilight awoke to see her friends wriggling on a cloth that Luna had spread out to place them on. The princess had obviously gone through alot.
"Princess? Where's SD? What happenned to all the demons?"
"Read this letter. It is enough to explain everything to you." replied Luna.
The princess levitated a white parchment that seemed to be wrapped over something. As Twilight reached for the parchment now placed upon the cloth, she opened it, to see the whistle that SD was supposed to take away. She looked at but soon set it aside to read the letter:
Twilight, the one writing this letter is not Silver Dragon, but the embodiment of his light, Celestial Twilight. I apologize for borrowing your body, but it was a necessary choice. I have revived and healed your friends, and the demons have all been destroyed. Therefore, you should have no trouble with them in the future. However, Silver Dragon has told me that he wants you to keep it, "just in case". You are to use it ONLY in an EMERGENCY that you are SURE you cannot handle. You will certainly meet again, but not now.
~Celestial Twilight
P.S. Silver Dragon didn't forget about his promise to bring you to the alternate realities of this dimension.
Twilight took in a deep breath. Silver Dragon was eventually going to come back, whether it was voluntarily or by the whistle, he would return, and she would eagerly await. Who knew what other versions of her existed? However, right now, the castle had to be fixed. Who knew how Celestia would react if she saw it in this state?
Silver Dragon was busy floating through the dimensional tunnel while talking "to himself".
"-you had to use that?!"
"Because they was no other choice. I wasn't going to stay there and fight ALL the demons. Who knows how long that would've taken?"
"So? Your aim could have been off, and you could've sent the ponies to the dark dimension."
"Pfff. My aim is perfect."
"This why I never let you and Celestial Twilight out. You are too chaotic and unpredictable, while Celestial is too orderly and law-abiding. You need both!"
"If it wasn't for us, you would have never been able to save that world." replied Celestial Twilight.
"Fine. That is true, but let's be quiet for now. I need to rest, and I have much to report to the demon hunters."
A few minutes later, and SD realized something:
"Am I forgetting something?"
"No. I didn't sense anymore demons in that world...atleast none that were a threat anyways." replied Crimson Black.
"Good. Then let's go. You two will have to return to silence again. Welp, there they are." Said SD while seeing the exit of the portal.
I will be making mini-adventures showing Silver Dragon returning and taking Twilight to alternate realities. I love alternate realities, but I won't put the tag for them up as this isn't significant on the main story.