Twilight Sparkle was levitating books onto one of her bookshelves as they had fell off of it while she was in her castle.
As Twilight put her books back with her magic she head somepony near her castle she perked up when she heard it got louder.
Twilight decided to go and find out what the noise was as it sounded like it was coming from the outside.
When she went outside she saw a unicorn defacing her castle with paint, she was shocked by the site. That sight turned into anger as she couldbt believe that a place belonging to the royals was being attacked.
"Hey stop it!" Twilight yelled at the filly. The pony took off running. Twilight looked back at her castle and saw that it was all dirtied now.
Twilight fumed with anger, she was not going to let anyone deface her place she chased after the pony and hoped that she would catch up.
Twilight was shocked at how fast the filly was, she wondered if it was Scootaloo since Scootaloo was being trained by Rainbow Dash to go faster like her.
Soon Twilight caught up to pony but then the pony took a sharp left down a narrow alleyway.
Twilight couldnt run through the alley because it was to dark so Twilight flew over the alley way and landed on the other side. She saw the pony heading torwards a street so Twilight picked up speed and ran even faster.
"Stop right there!" Twilight yelled, the pony didnt listen though and teleported before she caught the pony.
Twilight looked all around the area and even ran to a few other buildings to see of she could to find the pong but unfortunately she couldnt.
Twilight was frustrated as she had failed to capture the pony that had defaced her castle.
Twilight sighed and alerted the mayor who said that she would look into the crime.
Twilight trudged back to Ponyville to see the graffiti on her home. Twilight sighed as she cleaned it off with her magic.
Celestia visited Twilight to see if she could get some answers about the incident and Twilight told her what she had experience.
Once that was done Twilight wondered why a pony would do something so horrible. She had never seen something like that happen in Equestria while she was princess.
It was something she couldnt make sense of. She couldnt believe somepony would go through the trouble of getting caught in order to deface property.
Twilight cleaned the graffiti off of her castle and tried to focus on her duties, unfortunately she still thought about what happened to her castle as she wondered if one of the cutie mark crusaders had done it.
Soon it was announced that the culprit could not be found so Twilight just gave up waiting as the pony would never be found now.
Twilight went back to doing her normal routine every day as she did work and met up with her friends while the incident slipped to the back of her mind.
Then one day Twilight was walking throughout Canterlot during and early morning as she had a sleepover with Celestia. As she was about to leave Canterlot some filly walked up to her. Twilight recognized who it was.
"Hey Sweetie Belle! What are you doing here? Your supposed to be home...does Rarity or your parents know you were here?" Twilight asked.
Sweetie Belle looked away as she hesitated to speak, Twilight stopped a few feet in front of her and waited for her to talk.
"I came to talk to you, I know I could have waited at home but I was anxious so I heard you were here and came here for you." Sweetie Belle began to say.
Twilight raised an eyebrow, Sweetie Belle was being very suspicious and she didnt like it. She wanted to know what Sweetie Belle was up to.
"Sweetie Belle do you have something to tell me?" Twilight asked. Sweetie Belle frowned.
"Please dont be mad at me when I tell you this....I..." Sweetie Belle began to say. Twilight waited.
"I'm the one who defaced....your castle Twilight....I painted the castle and ran away from you...after that I decided to come clean." Sweetie Belle said as she was on the verge of tears. Twilight couldnt believe Sweetie Belle would do something like that she was shocked.
Twilight thought that a juvenile or bully did it but no it was Sweetie Belle Rarity's cute little sister. Twilight couldnt believe her ears.
"Sweetie Belle! Why would you do something like that?" Twilight exclaimed as she wanted answers. Sweetie Belle looked away and let out a long sigh and then spoke.
"I was forced to do it by Diamond Tiara, she wanted me to do it! She said if I did it she would stop bullying me! She also taunted me! I...I didnt know what to do..." Sweetie Belle said as she cried.
Twilight was not suprised to hear this, Diamond Tiara was always trouble. Twilight sighed and spoke.
"Alright your fine then. Thank you for being honest...Dont listen to a pony who's telling you to do such horrible things, if somepony tells you to do something bad tell your sister or your teacher if it's at school. " Twilight said.
Your...not going to punish me?" Sweetie Belle asked as she feared that she was going to be punished but Twilight shook her head.
No I'm not, I dont see a reason and punish you. Diamond Tiara is the one who should be punished and I'm not going to tell Rarity or your parents, let's keep this between the two of us okay? I'll punish Dismond Tiara myself." Twilight said.
"But what if Diamond Tiara snitches on you?" Sweetie Belle asked. Twilight grinned.
"After when I'm done she wont have the bravery to do it." Twilight said.
"Thank you." Sweetie Belle said.
"Your welcome." Twilight said. Soon they both went back home.
Sweetie Belle never did something bad like that again.