Write a descriptive novel about a teenage girl names Mary who discovers her calling to save the world, and embark on a journey to learn about her lost/dead parents.

Mary was a typical teenage girl, living a normal life in a small town. She had a few close friends, and enjoyed spending time with them, but she often felt like something was missing. She had a deep longing to discover her true purpose in life, and to find out more about her parents, who had died when she was very young.

One day, while walking through the woods near her home, Mary stumbled upon a mysterious cave. She was drawn to the cave, and decided to explore it. Inside, she found a strange glowing stone, and when she touched it, she felt a surge of energy course through her body.

The stone had given Mary a vision of her destiny: she was to save the world from an impending disaster. She was to use her newfound powers to protect the planet from destruction.

Mary was determined to fulfill her destiny, and set off on a journey to learn more about her parents and her newfound powers. She traveled to distant lands, meeting new people and learning about different cultures. She also encountered many strange creatures and magical beings, and gained valuable knowledge and skills.

Along the way, Mary discovered that her parents had been powerful sorcerers, and that she had inherited their magical abilities. With her newfound powers, she was able to protect the world from the impending disaster.

At the end of her journey, Mary had saved the world and found her true calling. She had also discovered the truth about her parents, and was able to honor their memory. She had found her place in the world, and was now ready to face whatever challenges lay ahead.