HK-51: The Droid Assassin of Equestria

by sonicdash123

Rating: everyone
Tags: Dark, Adventure, Crossover
Length: 3054

Deep in the Crystal Mountains, there lies a cave that holds an assassin droid called HK-51. Charming Thunder, the mane six, and the Cutie Mark Crusaders set out to find the factory so that Charming Thunder can use him as a body guard.

In a cave at the Crystal Mountains, a greatest discovery was made. The cave was stored with an assassin droid named HK-51. Charming Thunder, the mane six, and the Cutie Mark Crusaders set out to find it so that Charming Thunder can use him as a body guard.

(The reason why I am writing this story because I love to play Star Wars The Old Republic and HK-51 is my favorite character in the game)

Published 1970-01-01 00:00:00 UTC
Last updated 2013-10-29 21:31:30 UTC

Chapter 1: An Emergency Letter

At the mountains behind the kingdom of the Crystal Empire, a crystal pony went hiking in the mountains when she discovered a cave. "Lets see whats at the other side of this cave," the pony said as she uses her horn to light the way through the cave. "Hello? Anypony here?" Bats then suddenly flew out of nowhere and scared the pony as they flew past her. "Oh. I see an opening." She then entered the opening in the cave and her jaw dropped like that she was shocked about something. "What is that thing," she pondered to herself. It was a 1.8 meter robot with a weapon attached on its back. "I need to inform the princess about this at once." She then ran to get outside of the cave to tell the princess about her discovery in the mountains.

Cadence was at her throne room reading letters from his brother about his time at Ponyville and asking how she is doing while she was running the Crystal kingdom. She giggled a little as she was reading the letters until a pony entered the room and said, Your highness. I bring news about what I found when I was hiking."

"Tell me everything you know," Cadence said as she rolled up the letter she was reading and listened to the pony's explanation. When the explanation was done, she then called her squire and said, "Take a letter to my brother."

"Yes, your majesty," the scribe said as she levitated a scroll and a quill. She then started writing what Cadence was saying so that the letter can be sent.

Charming Thunder was at Sweet Apple Acres helping Applejack buck some apples off of the tree. He bucked a tree and apples fell into the bucket. "Wow, Charming Thunder," Applejack said. "Not only you are good at flying a starship but you are also good at apple bucking."

"Thanks, Applejack," Charming Thunder said. "And thanks for letting me help today, Applejack."

"You're welcome. I'll let you know if you can help me again."

"Ok. I'll see you later." Charming Thunder then headed back to town to go back to Rarity's boutique to rest up his legs from kicking trees. when he entered the boutique, he saw Rarity making a dress for one of her clients. She then noticed him and greeted him.

"Hey, Charming Thunder," Rarity said. "How was helping Applejack?"

"It was fine. Thanks for asking. Is Sweetie Belle around?"

"She just left with her friends doing some crusading. Something about getting a cutie mark based on story writing. She said that they were going to the park to think about a story."

"Thanks for telling me, Rarity. I was going to the park anyways."

"My pleasure." Charming Thunder then left the boutique to see the Cutie Mark Crusaders at the park. "Now where was I? Ah. Yes. Placing this gem here."

"I GOT IT!" Scootaloo shouted. "How about we can write an adventure story. It can be like a journal of our greatest adventure."

"Yeah," Applebloom agreed. "but where are we going to go on an adventure?"

"Maybe Charming Thunder would know," Sweetie Belle said as a suggestion. "He has been on lots of adventures just like my big sis."

"Did I hear somepony say that they want an adventure?" Charming Thunder said standing right behind the group. Scootaloo was shocked that she didn't know that he was there this whole time.

"Oh. Hey, Charming Thunder," the whole group said.

"Hey girls." He then was looking at the red rose bush and thought about giving some to Twilight as a surprise gift. "I was just here to check on you three to see if you came up with ideas on a story."

"We were thinking an adventure story," Sweetie Belle said. "Do you have any ideas?"

"No." He then used his magic to levitate six roses off of the bush and started to walk past them. "But if I do, I'll let you two know if I---" He then accidentally bumped into Twilight like that she was looking for him.

"Oh. There you are," Twilight said while she was catching her breath. "I've been looking for you everywhere."

"What is it?"

"Its a letter from Cadence." She then levitated the letter and gave it to him and it says:

Dear Charming Thunder,

You and your friends have to come to the Crystal Empire right away. One of my subjects made a greatest discovery and I want you and your friends to investigate it at the cave in the Crystal Mountains. She said that it is a robot that is not turned on. Please hurry.

Your sister,

Cadence

"Gather everypony, Twilight. It looks like that there is something we have to investigate at the Crystal Empire. Oh. and these are for you." He then gave the roses to Twilight and smiled.

"Awww. Thanks, Charming Thunder." She then gave a kiss on his cheek and started to walk off to find her friends. "I'll gather them up and meet you at your underground hangar."

Charming Thunder turned to the Cutie Mark Crusaders and asked, "How would you three would like to go on an adventure with me and the group?"

"Sure," Applebloom replied. "We shall pack the stuff we need to start writing the story and we'll meet you at Rarity's place. See ya' later."

"Sounds like I need a journal in case I want to research this mysterious robot in the cave." He then rushes back to the boutique to inform Rarity of the situation.

Chapter 2: Arrival at the Crystal Empire

Charming Thunder was readying the shuttle for transportation to the Crystal Empire. The Cutie Mark Crusaders were the last ponies to arrive to the group. He then exited the ship and saw the whole group waiting for him. "You girls ready?" he asked to the group. Everyone nodded and entered the shuttle in a single file line and went to find their seats.

The voice terminal then started to talk about the safety procedures of flight, "For your safety, please fasten your seat belts and keep your personal belongings under your seats while on board the Lambda class Imperial shuttle. Thank you and have a pleasant flight." Once the instructions ended, Charming Thunder started the engines and began the lift off sequence. The doors above the ship started to open as the shuttle slowly floated off the ground. Once it was outside of the hangar, its wings then started to fold down and it began to push forward to the direction to where the Crystal Empire is.

Everyone but the Crusaders and Charming Thunder were fast asleep during the flight. A spark was seen in front of him and he said, "Everypony wake up. We're here." They then started to wake up and rub their eyes and there they saw the Crystal Empire's tower the place were the princess stays. Charming Thunder then saw a great spot to land and headed there. The wings started to fold up like a butterfly and the ship has finally touched down to the ground. Everyone then unfastened their seat belts and exited the ship. They then started to walk to the castle and see what Princess Cadence's discovery was.

"It feels great to be back at the Crystal kingdom," Rarity said.

"You have been here before?" Charming Thunder asked.

"Of course. We came here to stop an evil dark king named Sombra from taking over this kingdom and set up the Crystal fair." She then pointed to the crystal heart that is in front of the castle floating. "Our friend Spike was the one who brought back the crystal heart and it destroyed King Sombra for good."

"Do you think that he might return, Twilight?"

"No," Twilight said. The conversation ended when they all arrived at the castle doors. The doors then opened and it revealed Princess Cadence waiting for them.

"Charming Thunder," Cadence said excitedly.

"Cadence!" He then shared a hug with her to show how much he missed his best sister. "I have missed you so much."

"I missed you, too."

"How's Shining Armor?"

"He's fine. He is with the royal guards protecting this kingdom. How are things back at Ponyville?"

"Ponyville has been awesome now that I am with Twilight. I met new ponies while I was there."

"So whats the situation?" Rainbow Dash asked.

"One of the Crystal ponies was hiking at the mountains and discovered something in the cave. I just can remember what she said it looked like but all she told me that it was a robot. I have her here with me right now so that she can explain what it is." Everyone then started walking to the room where the Crystal pony is so that they can figure out what she discovered and start their investigation in the mountains to see the robot in person and see if it is friendly or not.

Chapter 3: The Investigation Begins

The room where Charming Thunder and his friends are in was where the pony they are going to talk to before they set off to the mountains. "Hi," Charming Thunder said. "my name is Charming Thunder. Me and my friends were wondering if you knew what this..."robot" looked like so that we can get a good picture of what it is. So can you please tell us?"

"I will," she said. "It...it was 1.8 meters tall, it had some sort of weapon on its back, the color of its metal was silver so shiny that you can see a reflection of yourself, and its head was roundish triangle shaped. Thats all I know."

"You got all that, Twilight?"

"Got it all," Twilight said as she was writing everything the crystal pony said.

"Thank you for your time. And nice meeting you."

"Nice meeting you, too. Come back safely."

"No need to tell me," Cadence said when the group exited the room. "I'm sure that I'll remember everything she said."

"We are going to the mountains now. Im sure it won't take long." Charming Thunder and the rest of the group then left to the castle to walk up the path to the cave that is in the mountains.

Charming Thunder and the mane six have been taking the trail as suggested for hours. Applejack was moving the cart so that they can put the robot in it to carry it back. "How much farther?" Applejack asked Charming Thunder. "My legs are starting to get tired."

"We're close," Charming Thunder replied as the group came to a stop to the entrance of the cave. "Alright. Shall we take a look inside?" Fluttershy then started to get scared and hid behind a nearest rock. "Oh come on, Fluttershy. Its just a cave."

"Yeah I know," Fluttershy said as she peeped her head over the rock. "A dark...scary...cave. Eeep!!" She then hid behind the rock again and got scared even more.

"Rainbow, if you please." Rainbow Dash then flew behind the rock and grabbed Fluttershy as the others started to walk through the cave. As they passed through the cave, they came across an opening and entered the room. There the group came face to face with the robot similar to what the crystal pony described.

"Ok we found it," Fluttershy said. "Now can we go? " She then started to shake due to how dark the way is on the way back.

"Yes. Twilight, Rarity, help me put it in the cart." The three unicorns then carefully levitated the robot to the cart. And they now headed their way back outside and return to the Crystal kingdom to show the princess their discovery.

"New discovery eh?" Shining Armor said. He returned from his duty and is in a discussion with his wife about the situation that has been going on while he was away. "And Twilight and her friends are bringing it here?"

"Yes," Cadence replied. "I believe so. and when they do, I would like to present it to Celestia once I get a reply to the letter I sent her--." A knock was then heard at the door. "Enter." Charming Thunder and the group entered the group with the cart covered with cloth. Twilight then noticed her brother in the room.

"Shining?" Twilight shouted with joy.

"Twiliey!" Shining Armor and Twilight then shared a hug. "I missed you, kid."

"Me too, BBBFF."

"Whats in the cart?"

"The discovery that was hidden in the cave of the Crystal Mountains," Charming Thunder said. "I give you..." He then levitated the cloth off of the cart and revealed the robot. "... the robot."

"Whoa. That's amazing." A squire then entered the room and gave Cadence the letter.

"Its from Celestia." She then unrolled the scroll and read it:

Dear Cadence,

I would love it if you and your brother would bring your discovery to Canterlot. If it is a robot, can you find a way to turn it on before you show me and Luna. See you soon.

Sincerely

Princess Celestia

"We better get ready to go to Canterlot then," Applejack said. "Somehow my back is killing me from carrying this cart with this heavy robot."

"Agreed," the Cutie Mark Crusaders said. Everyone then went to his shuttle and prepared to travel to Canterlot to present the robot and find out if it can be useful.

Chapter 4: The Robot's New Master

Canterlot has been fully repaired ever since Darth Vader invaded. A landing pad was made for Charming Thunder to land his shuttle in. The cart carrying the droid was being carried by Shining Armor. The royal guards at the doorway to the hallway of the castle saluting to the presence of the Captain of the Royal Guard. Charming Thunder then went to his room and levitated the robot out of the cart to make it stand up straight and research was about to begin. He levitated a quill and his journal and started to analyze the robot.

It has been a few hours since Charming Thunder was trying to figure out how to turn on the robot. He has been going over his notes about the size, weight, and details about the robot over and over again to find an on switch. He then heard a knock on the door. It was Applebloom, Sweetie Belle, and Scootaloo who was at the door. "Oh. Hey, girls," Charming Thunder said. "Whats up?"

"We were wondering if we could help," Scootaloo said.

"Sure. Come in. I've been trying to figure out how to turn it on but I have no idea what to do." The Cutie Mark Crusaders then thought of an idea that it might work.

"Why not give the robot a tiny shock with your thunder magic," Sweetie Belle said. "Maybe that should wake it up."

"Sweetie Belle, you...are... A GENIUS. Why didn't I think of that before. Lets try. Stand back if anything goes wrong when it is activated." The three fillies then took a few steps back while Charming Thunder approached the robot and used his magic on it. Sparks went flying everywhere and the robots eyes then glowed yellow. It then looked around the room it is in and looked at the red unicorn.

"Declaration: Self-diagnostics complete. Assassination protocols active. All systems go," it said. "Salutation: Greetings, master. I am HK-51. I am armed, operational, and ready for your command."

"Are you talking about me?"

"Confirmation: Of course, master. You were the one who activated me. Querey: Where am I exactly, master?"

"You are at Canterlot castle," Applebloom said. "My name is Applebloom. These are my friends Sweetie Belle and Scootaloo. And his name is Charming Thunder. Welcome to Equestria, my friend."

"Tell me your capabilities, HK-51," Charming Thunder requested so that he can learn more about it.

"Encouragment: I can provide security anywhere you go, master. I can anticipate liquidating any undesirable you wish either you want me to torture or kill while I am in your service. Oath: While I am here I will maintain constant vigilance. I will also inform you of any traitors."

"Well since I turned you on, how about I introduce you to the rest of my friends?"

"Statement: Of course, master." HK-51, Charming Thunder, and the crusaders left the room to go meet the others who are at the throne room.

"So let me get this straight," Luna said. "you turned it on by using your magic on it?" The princesses and the mane 6 and Charming Thunder were discussing what happened earlier from now and HK-51's capabilities.

"Wow," Twilight said amazed of his best friend.

"May we see it?" Fluttershy asked. "If its all right with you."

"Sure," Charming Thunder said. He then turned to the door and shouted. "HK-51, you can come in now." HK-51 entered the room and walked straight towards him as he then took a bow to the presence of the princesses.

"Statement: It is an honor to meet you," HK-51 said. "My master has been talking about you while we were heading to this room."

"Amazing," Twilight said as she examined HK-51. "What does he do?"

"He is a professional assassin droid."

"Analysis: I went over the history of this world. I must say that Cadence and her husband Shining Armor have done well defeating these...Changelings. But banish them to the edge of the forest? I could've done better."

"It was the only option I had," Cadence said. "And...how do you know about the changeling attack."

"Commentary: My master showed me the library so I scanned every history book that was on every shelf and now I can get use to this world." Everyone in the room was amazed of what the robot can do.

"I'm sure that you can be useful if the world is in danger," Shining Armor said. "Why don't all seven of you show our new companion around Ponyville?"

"I was thinking the same thing," Twilight said. "Besides. Charming Thunder did promise me to help me an Spike clean the library."

"Commentary: Master, if I may. Once we reach Ponyvile, could you tell me where yo live and I'll head there to recharge."

"Guess the tour would have to wait then."