Jill Pole is a fictional character from C.S. Lewis's Chronicles of Narnia series. She first appears in the book titled "The Silver Chair," where she is introduced as a schoolgirl who is adventurous and brave. Jill is known for her strong will and determination, often taking on challenges alongside her friend Eustace Scrubb. In "The Silver Chair," Jill is summoned to Narnia to help find the missing prince, Rilian. Throughout the story, she learns important lessons about courage, friendship, and trust, ultimately playing a crucial role in the quest to save Rilian and restore peace to Narnia.