In Canterlot City and in a certain house, a certain young girl can be seen in her bed. This girl was Sweetie Bell, also known as number 21 of the kids next door. Said girl was on her bed sick with the common cold. She let out a small sneeze, and after sneezing, she took a tissue and blew on it. The door of her room suddenly opened, and her sister rarity suddenly entered the room carrying a tray that had a bowl of chicken soup on it. She placed the tray on the nightstand that was next to the bed before picking up the chicken soup and giving it to Sweetie Bell.

"Thank you, rarity." Sweetie Bell said before she ate the chicken soup.

"You welcome, sweetie." Rarity said before she heard someone ring the doorbell. "Oh, it seems we have visitors. Let me go check." Rarity left the room, and after a few minutes, she suddenly came back. "Sweetie, you have visitors." After she said that, she moved to the side, letting number 1, 2, and 4 to walked into the room.

"Oh, hey guys." Sweetie said as she greeted her friends. "What are you doing here?"

"We are here to check on you to see how you are doing." Number one said.

"Anyhow, I am going back to my room to do some work. Call me if you need anything." Rarity said before walking off.

"Where is everyone else, by the way?" Sweetie said

"They are currently on a mission right now." Number one said. "We didn't follow them since we need to be here to guard you in case any evil adults try to extract information from your brain."

"Um, thank you." Sweetie Bell said in an unsure voice before she suddenly sneezed again. "Man, this is one bad cold."

"Yeah, sorry about that." Number 2 said. "I was pretty sure that my new cold-proof suit could protect you from the common cold attacks."

A few days ago, unknown to rarity and her parents, the entire sector V faced against the adult supervillain known as the common cold. Before they went to face him, number two equipped the entire team with a cold-proof suit that was supposed to defend from any sickness that the common cold could throw at them. Unfortunately it didn't work as well as intended, as Sweetie Bell has gotten sick a few days after they battled.

"It's alright, number two; you did your best." Sweetie said as she rubbed another tissue on her nose.

"Hey, if it's alright with you number 21, I need to use the bathroom." Number one said.

"Its down the hall past rarity room." Sweetie Bell said.

"Thanks," Number one said before leaving the room.
....
After using the bathroom, number one was on his way back to sweetie bell room; however, just as he was about to walk past rarity room, he suddenly heard something that caused him to stop.

"Don't worry, Father Sweetie doesn't suspect a thing." Rarity said. Curious number one put an ear on the close door. "Yes, I will be careful to make sure she doesn't find out. Once everything is done, sweetie is going to die."

Number one gasped and quickly ran towards sweetie bell room.
....
In sweetie bell room, said girl was currently sleeping, and while she was sleeping, both number two and four were playing a card game at a table that was in the room. The door was slightly open, and number one sneaked his head in.

"Psst guys." Number one said gaining their attention.

"Oh, hey number one," number four said.

"Guys, come here; we need to talk now," Number one said. "It's an emergency." Both number two and four look at one another for a few seconds before eventually walking out of the room to talk with number one.

"Whats up number one?" Number two asked as he and number four walked out of the room and into the hallway. After walking out of the room number two, close the door.

"Number 21 sister is working for father." Number one said shocking the two.

"Are you sure?" Number four asked.

"Yes, I am sure," number one said. "I overheard their conversation, and from what I heard, they are planning to do something to number 21."

"Well, what are we waiting for? Let's go take her down." Number four said.

"We can't act without first gaining information on their plan." Number one said.

"Then what you suggest we do." Number four said.

"Number two, and I will go follow number 21, sister, and while we do that, you go guard number 21." Number one said.

" Right." Number four and number two said at the same time.

"Now if there are no more delays, kids next door battle station." Number one shouted.
....
Rarity, after exiting the house, quickly locked the front, and after locking the front door, she began walking away. However unknown to her as she walked away, hiding in a bush nearby, were number one and number two, who were watching her walk away.

“She’s on the move.” Number two said as he and number one looked over the bush.

“Well, what are we waiting for? Let’s go.” Number one said as he and number two follow rarity.
….
The door of a hardware store opened, and shortly after the door opened, rarity walked in. She went towards the aisle looking for something until she eventually stopped when she found what she was looking for, which was a welding torch.

“Ah, here it is.” Rarity said as she took the welding torch. However, as she walked to the cash register to purchase the blowtorch, she didn't notice that hiding behind one of the aisles were numbers two and one. The two watched as rarity bought the welding torch before leaving the shop.

"Why do you think she's buying a welding torch?" Number two asked.

"I am not sure, but it can't be good." Number one said.
....
In sugar cube corner, rarity sat on one of the tables, drinking a cup of coffee. Sitting not too far were number one and number two. The two were holding an open newspaper that was blocking their faces.

"What do you think she's doing?" Number two said as he looked over the newspaper.

"It's possible she's waiting for someone." Number one said. Suddenly the front door of the shop opened, and in came sunset shimmer, who, after entering the shop, sat down on the chairs across rarity.

"Oh, hello sunset." Rarity said happily. "Great to see you could make it."

"Yeah, good to see you too, rarity." Sunset said happily.

"Anyhow, did you get what I requested?" Rarity asked.

"Yeah, I did." Sunset said. "It was quite easy too, as all I had to do was cash in some favors. They will have it delivered to your house by today."

"Thats good." Rarity said. "Sweetie Bell is going to love what I am going to make for her."

"I agree she is going to love it." Sunset said. As the two continued to talk, both numbers one and two continued to listen into their conversation.

"A package, eh?" Number one said in a suspicious voice.
....
After saying goodbye to one another, rarity was now walking on the street of a neighborhood. However, as she walked, she didn't notice a vehicle flying just right over her.

"Keep a steady pace on her." Number one said.

"You got it," Number two said as he drove the vehicle. The two continued to follow rarity until she reached a house. She went to the front door of the house and knocked on it. After waiting a few minutes, the door opened, and out came her friend's pinkie pie.

"Hey rarity." Pinkie Pie said.

"Oh, hey, pinkie." Rarity said. "Did you have what I requested?"

"Ah, huh, I did." Pinkie said. "I will deliver it to your house later."

"Why thank you, Pinkie I knew I could count on you." Rarity said before she and Pinkie began making small talk.

"Hm, she's expecting another package." Number one said. "It seems whatever she's planning is something huge.

"What you think she's planning exactly." Number two asked.

"Not sure, but we will find out soon." Number one said.
....
After getting home, rarity straight away went into her room to work on her latest outfit design. As she continued to draw her design on a piece of paper, number one, two, and four who were in sweetie bell room had gathered around a listening device that they were using to hear any conversation from rarity room.

"Hm, nothing so far." Number two said. Suddenly, out of nowhere, they heard the doorbell ring.

"Oh good, that must be them." Rarity voice, which was coming from the listening device, said.

Suddenly footsteps were heard through the device, which was followed shortly by the sound of the front door opening.

"Oh good, you are here with my materials."

"Where you want to put this."

"The shed in the backyard should be sufficient. It has both room and privacy. Anyhow, let's go, darling."

The sound of footsteps was then heard again before the sound of a door opening was heard, and then there was silence. After a few minutes, the sound of a door opening was heard again through the device, which was followed by the sound of footsteps.

"Thanks for the help, darling."

"No problem."

The sound of a door opening was heard again before it was followed by footsteps.

"I think I should go work on my surprise for Sweetie Bell now."

The three then heard the sounds of footsteps coming from the device before eventually hearing the sound of a door opening and closing. Number one then turned off the device and looked at his two friends.

"So what are we going to do now?" Number four asked.

"Me and number two shall go spy on number 21 sister to see what she is up to." Number one said. "And while we do that, you shall guard number 21."

" Right." Number four and two said.
....
Outside of the shed, where rarity was working on her surprise for sweetie Bell, were number one and two, who were leaning against the wall at the side of the shed. The two continued to walk against the wall until they were right under the window that was at the side of the shed. As they lean against the wall, they hear sounds coming from inside the shed.

"All right, number two, hand over the periscope," number one said.

" Right." Number two said as he took off the bag he was holding. He then put the bag on the ground before opening it. He then pulled out the periscope and gave it to number one, who immediately used it to look through the window.

" Hm." Number one said as he tried to see inside the shed, but due to the inside of the shed being a bit dark, he was having difficulty seeing anything inside. However, thankfully, the room was illuminated a bit by a blue light from what number one assumed to be is from the welding torch rarity bought. Thanks to the light number one, could see shadows on the wall of the shed. The shadow, from what he can tell, was of rarity, using the welding torch on what looked like a figure that resembled sweetie bell. As number one continued to look at the shadow, a look of fear suddenly appeared on his face as an idea came through his mind.

"Oh my goodness." Number one said as he pulled down the periscope.

" What. What did you see?" Number two said as he saw a look of horror on his face.

"She's making a robot duplicate of number 21." Number one said.

"Robot Duplicate." Number two said.

"Yes, Robot duplicate." Number one said. "She's no doubt planning to replace number 21 with a more obedient robot that will do whatever the adults say." And I fear that if we don't do anything soon, all the children in the world will be replaced by robot duplicates that will obey adults.

"Well, what are we waiting for? Let's stop her." Number two said as he and number one brought out their weapons.

"Let's go," number one said before he and number two went in front of the door. They burst through the door guns drawn and immediately froze once they saw what was inside the shed. Inside the shed was a metal statue of Sweetie Bell, and next to it was rarity, who was holding a wielding torch. Said girl turned to look at them once they burst into the shed.

"What are you two doing here?" Rarity demanded before putting down the welding torch.

"Um, what are you doing?" Number one said in an uncertain tone.

"I am making Sweetie Bell a metal statue as an apology for not being able to participate in the Sisterhoods Social with her that took place last month on the account of me having the flu." Rarity said. "I spent weeks working on this and was planning on giving her this statue as a surprise. The difficulty part was gaining the metal needed to make it. Luckily, my friend Sunset was able to get me the metal I needed. Anyhow, what are you guys doing here?"

" Um. We thought you were going to hurt number 21." Number one said.

"You mean sweetie bell." Rarity said. "Why on earth do you think I would hurt my own sister?"

"Well, I overheard you were saying something along the lines of Sweetie is going to die."

"Yeah of happiness." Rarity said. "I can't believe you think I would hurt my own sister."

"Ah, huh, sorry about that," number two said as he and number one walked backward out of the shed. "We will be leaving now." Rarity watched as the two walked out of the shed with a look of embarrassment.

"I swear kids these days." Rarity said as she turned back to her work.
.....
Later that evening, Sweetie Bell, after finally waking up from her sleep, was going down the stairs and heading towards the kitchen to get a glass of water. As soon as she arrived down the stairs, she saw the living room was dark.

"What the?" Sweetie asked in a voice full of surprise before suddenly the light switched on, and she saw that in the living room was her sister rarity ,number one, two, four, and pinkie pie.

"Surprise,"they all said.

"What the?" Sweetie asked confused. "What's going on?"

"Well, sweetie, I feel bad about not being able to attend the Sisterhoods Social with you, so I decided to make you a little something as a gesture of apology." Rarity said before she and everyone parted ways to show a metal statue of her in a princess outfit. Sweetie took a closer look at the statue and was impressed with how much it looked like her.

"Wow, that's quite amazing." Sweetie said. "It looks exactly like me."

"Well, I am one who pays close attention to detail." Rarity said. "Now let's go eat some cake."

" Cake." Sweetie Bell said excitedly

"Yeah, pinkie pie came here with cake," Rarity said.

"Yum cake." Sweetie Bell said happily.

"Come on, everyone, let's go to the kitchen for some cake." Pinkie Pie said, and immediately everyone went to the kitchen to eat some cake.
....
Later than night, a teen dressed in armor can be seen sneaking into the backyard of Sweetie Bell and rarity house..

"Marcus reporting to headquarters." The teen, now known as Marcus, said to a communication device that was in his helmet. "I have successfully arrived at the target backyard, and I will now be breaking into the target house through the use of her window. I will report back after I am successful in extracting information from the target brain." After breaking the communication, Marcus then activated the booster on his shoes and quickly flew towards the window that led into sweetie bell room. As soon as he opened the window, he was about to fly into the room, but before he could, he saw a kid next door weapon known as a M.U.S.K.E.T. pointing at his face, and holding the weapon was number 21.

"Hello and goodbye." Sweetie said before she fired the gun, causing mustard to cover Marcus face. Marcus then fell to the ground, and before he could get up, a fist slammed on his head, causing him to fall unconscious. Sweetie Bell looked from her window and saw that standing next to the unconscious teen was number four. The door to the shed then opened and out came number one and two.

"Good job, number 21." Number one said as number two, place a pair of handcuffs on the teen who was still unconscious.

"It was no problem." Number 21 said.

"Anyhow, I will be calling the moon base and informing them of a pickup." Number one said.

"Thats good." Number 21 said. "Anyhow, I am going to sleep now; see you guys tomorrow. Good night."

"Good night." Number one said before he, along with number two, began leaving the backyard. Following behind them was number four, who was dragging the unconscious teen. Number 21 then closed the window and went to bed.

....
End of chapter 4

Author's Note

Yeah, sorry for the late update, but it's not easy to come up with an original story, and I've also been busy working on my other story. Anyhow, time for the fact of the day.

The part about evil adults extracting information from her brain was a shout-out to the kid next door episode support, where, like in this chapter, number one was paranoid that someone would extract information from number five, who, like Sweetie Bell, was sick. In fact, like this chapel, the episode ended with a teen ninja trying to extract information.

Another shout out was the Sisterhoods Social which is obviously a shoutout to the sisterhooves social from my little pony.

Anyhow, don't forget to leave a comment on what you think of my story so far.