When she is distracted from doing this by temptation of good food and rest as part of the Lady of the Green Kirtle's trickery, the group lose their way and find themselves in serious danger from the man-eating giants of Harfang.

Jill and Eustace are called into Narnia to help King Tirian in his struggle against the false appearance of Aslan, and a Calormene invasion.

Then Jill disobeys the king's orders by entering the Stable, but in doing so, she discovers Puzzle the Donkey, the fake Aslan.

She later goes through the stable door and comes into Aslan's Country along with the others and also becomes one of the Queens (alongside Polly and Lucy) along with Eustace who becomes a King like Digory, Peter, and Edmund.

In the 2010 film The Chronicles of Narnia: The Voyage of the Dawn Treader, Jill Pole is mentioned visiting Eustace at the end, although she is not shown.