Twist of powers and loyalty

Olivia was exploring the library, when she found an ancient mysterious book covered in dust. The book was bound in black leather, and its pages were covered in strange symbols and writing. Olivia picked up the book, and as she did so, a gust of wind blew through the attic, causing the candles to flicker. "What is this?" she wondered aloud. She opened the book and began to read. As she did, she felt a strange tingling sensation, and the pages began to glow with a soft light.
Out of curiosity, she made a wish, without knowing. After that, she found out that the book she uncovered was a spell book! She cast a spell that changed her life for good.