Here is a short story using the words and phrases you requested:
Once upon a time in a small town, there lived a wicked thief. He was known as the worst criminal in the area. Every night, he would sneak around, looking for things to steal. His heart was as black as coal, and he cared for nothing but his own greed.
One night, as he was walking down the street, he saw a beautiful necklace shining in a shop window. His eyes sparkled with excitement, and he thought to himself, "What a stupid thing to leave out in plain sight!" He made a plan to break into the shop.
As he entered the shop, the sound of a small bell rang. Suddenly, a woman appeared and began to scream. She was the shop owner, and she was scared. With all her strength, she yelled at the top of her voice, "Help! Someone is trying to rob me!"
Hearing her screams, the neighbors rushed over and caught the thief red-handed! They tied him up and called the police. The wicked thief learned that crime does not pay and that he would never steal again.
From that day on, the small town felt much safer without the wicked thief around. Everyone celebrated and thanked the brave woman who had the courage to scream for help.
This story includes all the requested words and should be suitable for a 6th-grade level. It teaches a lesson about right and wrong while being engaging.