A group of humans walked through the castle with their new Equestrian friends. While Scott had been talking to Twilight earlier, the other ponies had been making friends with the other humans. As Celestia and Luna saw them enter the throne room, they flinched in shock.
"It is them..." Celestia whispered.
"Be very very careful, sister." Luna whispered back.
"Hello, your Majesties." Scott said, bowing.
"We are humans, from Earth, and-"
"Why did you blow up your galaxy?" Celestia asked calmly.
"Well... Uh... How did you even know about that? That was a million years ago!"
The ponies watching gasped in shock.
"I am very, very old. I witnessed those supernovas myself, and most life on this planet stemmed from microbes delivered from them."
"I had no choice. I did what I had to, in order to save the rest of the universe."
"You did it? Specifically, you? How did you save the universe?"
"I was one of the only humans with the Supernova Device. I created Project Apocalypse because humanity had planned to use the Supernova Device to annihilate the Universe, because we encountered one type of alien who almost destroyed us, and we didn't want any more surprises. I was against the decision, as were the humans who joined me, but we could not stop them."
"You single-handedly committed genocide?"
"No, there are some humans left, the ones with me. But I did kill the ones who would have destroyed everything."
"Without enough people for genetic variation, you have doomed your species, and committed genocide."
"We have a device that can artificially create genetic variation. We can survive."
"Do you expect me to allow you to walk freely, despite your uncountable number of murders, and owning a weapon capable of destroying the universe?"
"I destroyed the weapon, and we came here to warn you. We didn't have to stay in stasis for so long, we could have found a habitable planet without intelligent life, and started a colony there."
"I will allow you to remain free, under one condition. You must stay with Twilight Sparkle until further notice. Prove yourself, and you may go free."
"I accept your terms. I will teach her what she would like to know about humanity, in exchange for knowledge about... Equestria?"
"Yes, this is Equestria. One more thing: you may bring your spacecraft with you, and your crew may stay there, but violence will not be tolerated. Do not injure ponies without good reason. I will decide afterwards if it was in good cause, so make sure your case is a good one. Guards, escort them to Ponyville."
As Scott turned to leave, he couldn't help but notice the betrayed looks on the faces of the ponies who had become his friends for such a short time.
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Twilight couldn't believe it! This alien race of creatures had destroyed a galaxy! Millions of stars, gone! The aliens hadn't even thought to tell her! She fumed for a while, then thought, "If I had destroyed a galaxy, (which of course I wouldn't, except by accident), would I go around telling everypony I met? I guess not..."
"Scott, did you really destroy a galaxy?" She asked nervously.
"Yes..." He sighed, eyes downcast. "I was planning on telling all of you as soon as I had gained trust... But I guess there is no chance of that now..."
Twilight smiled. "I trust you. You told the truth, didn't you?"
Scott looked up in surprise. "But I destroyed a galaxy. Aren't you worried I would do the same to yours?" He asked questioningly.
"Of course I am! But you said you destroyed the weapon, and I believe you. Also, logically, if you didn't want an alien to destroy the universe, what would you do to said alien?"
"Either befriend or destroy it?"
"Exactly! Celestia wants to befriend you, or at least give you some reason to not destroy the universe."
"Yea... Until she decides to destroy me, or lock me up forever..."
"She wouldn't do that!"
"I bet she would, to protect her precious little ponies."
"Well... Maybe... Let's not let it come to that. Can I ask you some questions about humans, and your technology?"
"Sure, as long as I can ask you some questions about your world."
By the end of the day, both had a reasonable grip on the other's world, and Scott was about to start explaining higher science when he yawned.
"Tired?" Twilight asked.
"Yeah..." Scott sighed. "Can we continue tomorrow?"
"Of course!" Twilight replied. "But we also need to go introduce you and your friends to the rest of Ponyville!"
In the morning, Scott awoke to an empty library. He wandered around a bit, until he noticed a note on the table. Unfortunately, Scott could not read pony writing, so he couldn't tell what was written. Fortunately, Twilight had left a picture of a building that looked like a gingerbread house and what appeared to be a map, so Scott decided Twilight must be telling him to go there. Strangely, there didn't seem to be any ponies around. After collecting his twenty crew members and explaining the situation to them, they walked through town until they reached the gingerbread house. They cautiously opened the door, and-
"SURPRISE!!!" Shouted what must have been every pony in Ponyville.
"Gah!" Scott responded, well and truly surprised. Then he laughed and smiled.
"I haven't been to a surprise party in at least thirty years!" He said. "Actually, make that close to a million years!"
Pinkie's smile grew almost as wide as her face, and Twilight walked up to Scott, saying "Now, I can introduce you to Ponyville!"
After the party, and the introductions, (including Rainbow Dash claiming that she was "20% cooler" than the spacecraft, Fluttershy quietly inquiring about animals from Earth, Rarity remarking on their fashion sense, and Applejack showing them her apple products), Scott went back to the library and lectured Twilight on advanced science.
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"Equestria has the alien, and Celestia recognized it as having destroyed a whole galaxy. We can capture it, and learn its secrets. Maybe this information will be enough to get me promoted..." A voice whispered from the darkness, as the Royal Guard suddenly appeared to be lacking one member...