After finishing their meal and once all was quiet in Ponyville, the three exited Colgate's house. She turned to Dark Night and asked, "Do you remember the way to Sombra's realm from here?"
"That I do Colgate, that I do." replied Dark Night.
Colgate ordered, "Well you lead the say."
Dark Night took to the sky and Colgate and Lightning Storm followed him. As they were headed to the northwest, Dark Night was filled with a sense of dread. If there was one pony that he never wanted to see again, it was King Sombra. Even though Colgate had purged herself of all her evil, he still did not think it would be a wise idea to show any nervousness around her.
It was nearing dawn when Sombra's realm came within view. Like it always was, the place was covered in a dense overcast with the exception of a small patch of clear sky on the eastern horizon, one that allowed the sun to shine through. When Sombra's castle finally came into view, Dark Night was stopped in his tracks. He simply could not fly any further. He turned to Colgate and said, "Colgate, I don't think I can go any further. What if Sombra was to do something to me? What if he was to do something to us?"
Colgate pointed to his wings and began, "Dark Night, you are an Alicorn while he is just a unicorn." She then pointed to herself and continued, "And if he causes us any problems, I could easily take care of him, which I plan on doing." She then pointed towards Lightning Storm and finished, "But first I think we should have him covered in ooze."
Lightning Storm knew that was likely an order, "Yes ma'am! Will do, ma'am!"
This gave Dark Night the confidence he needed and when they finally arrived, the dark unicorn soldiers were already stirring and appeared to be getting ready for the day ahead of them. They then saw their target, King Sombra, out on his balcony. Even though he was a bit nervous, Dark Night landed on the balcony. King Sombra saw him and snapped, "Dark Night, what are you doing up here this early." Colgate and Lightning Storm then landed next to him and his jaw dropped open, "Wait a minute, how did you get wings?" He then pointed at his companions and growled, "And who are these two?"
Colgate ordered, "Cover him in ooze, now!"
Lightning Storm did as ordered and very quickly Sombra was covered, was unable to move and his magic was disabled. Despite being in such a vulnerable situation, his attitude did not change any. He yelled, "Who are you two, how did Dark Night get wings and how did you get a changeling in your service?"
Dark Night approached him, stood tall and replied, "It is a long story and likely a story you wouldn't be able to understand."
Colgate grabbed the king in her aura and added, "We don't have time to explain it but the time has come for a change in power. The time has come for MY general take on the role as king of the dark unicorns."
Dark Night gasped, "King of the dark unicorns? You really think I have what it takes to be a king?"
Colgate replied, "Yes, I do." She picked Sombra up and continued, "Now it is time to make the transition in power official." She took off down towards the base and continued, "To the base!"
King Sombra began screaming and yelling in a fury as Colgate was carrying him down to the base. He was screaming that there was no way that an ordinary Alicorn such as Colgate could unseat him from power and that Dark Night would never become king. Once they arrived, Colgate sat the belligerent Sombra down and yelled, "Attention!"
The troops immediately gave her their attention but were shocked that it was somepony other than Sombra who yelled it. One of the dark unicorns asked, "Who is it that asks for our attention?"
Colgate replied, "I am the one who asks for your attention." She approached the troops, stood tall and spread her wings wide. The troops looked in awe at the Alicorn that stood before them.
She had their attention until Sombra began yelling, "Attack them you idiots! Attack them and free me from this ooze!"
With Sombra completely immobilized and being harmless, one of the regular hoof soldiers stepped forward and said, "No. We will not free you."
Another added, "I am not sure what is going on but I have a feeling your days of ruling are over."
Sombra began to scream at them, calling them traitors until Colgate continued, "Dark unicorns, you are correct, Sombra's days of ruling are over." She motioned for Dark Night to step forward and continued, "And now I present to you, your new king, King Dark Night!"
The soldiers knew that while Dark Night always put on a tough front when he was in Sombra's presence, that when he was with them on the base alone, that he was a much more laid back pony. One of the soldiers did have a question, "Your Majesty, how did you get those wings? How did you become an Alicorn?"
Dark Night replied, "That is something that I can discuss with all of you later but the blue Alicorn who is with me, Colgate, has other business she must tend to."
"That I do," replied Colgate "but first we must make this power change official. She grasped Sombra in her aura and ordered, "Tell me, did you have any dark plans prior to my arrival? Did you have any plans involving an attack on Chrysalis against Equestria?"
"No!" yelled Sombra, "Why would I conspire to do anything with her?"
Colgate knew that what Sombra was shouting was a lie but decided that she would not call him out on it. She simply wanted to get this done with so her and Lightning Storm could get to the changeling kingdom, get Chrysalis taken care of and stop the one event that cast the world into so much turmoil. She intensified her hold on the belligerent king and recited,
"You have committed treason and that is not in season, you are a threat to me and I simply can not let that be, I can no longer be annoyed so you shall be cast into the void."
Immediately, a black vortex opened up and began to swallow the king. He yelled, "Nooooooo!"
Once he had been sucked into the void, Colgate proudly stated, "And now it is official, who was General Dark Night is now KING Dark Night!"
The troops began to cheer wildly knowing that no longer would they have to live in constant fear of a short-tempered leader punishing them for doing anything wrong. They knew that life would be much easier now that they had a leader who would actually care about them.
Colgate turned to Dark Night and said, "Well I am glad to see that we have an ally of Equestria on the throne here now."
Dark Night replied, "Don't worry Colgate, if Equestria ever needs our help, we shall answer the call." He then remembered that in the times prior to Twilight's corruption that the dark unicorns were foes of Equestria. He asked, "You will be sure and tell the royal pony sisters that we are no longer enemies of theirs, right?"
Colgate replied, "And Princess Twilight and the royal family of the Crystal Empire." She then turned to Lightning Storm and continued, "Well shall we? Shall we finish my mission to prevent the terrors that would lie ahead?"
"Yes Colgate, let's do it." replied Lightning Storm.
Colgate then turned back to the new king and finished, "And good luck my friend. If you need any advice on how to rule, you know where to find me."
"That I do. Thank you for everything Colgate." replied Dark Night.
Colgate nodded and her and Lightning Storm then took off to the south. Once they got out of eyesight of Dark Night's new realm, Colgate stopped Lightning Storm and asked, "Are you ready for this? Are you ready for this flight?"
Lightning Storm asked, "What about your time spell? Couldn't you just use it and get us there in nothing flat?"
Colgate replied, "Given that we are not in the timeline where we came from, I would advise against this." She then realized that it was three days after Twilight's coronation so I think it would be best if we wait around, return to Ponyville under the cover of darkness and wait in my house until the right time comes."
"Very well, we shall go with your plan." replied Lightning Storm.
The two headed to the Everfree Forest to lay low before darkness would arrive and they would go to Ponyville and hide out in Colgate's house before the time would arrive to head to the changeling kingdom, get Lightning Storm installed as the new king of the changelings and then prevent the terrors of the future from ever happening.