Question: Jill Pole appears in "Chronicles of Narnia" which is based on which novelist's work?

Context paragraphs:
Archenland: In C. S. Lewis's fantasy novels the "Chronicles of Narnia", The Kingdom of Archenland is a nation to the south of the Kingdom of Narnia, and to the north of both nations' occasional (and final) enemy, the Calormen Empire.  Its borders are formed by mountains to the north and by the River Winding Arrow to the south.  Its capital appears to be the castle located below the Anvard pass, which allows passage to Narnia.

Lady of the Green Kirtle: The Lady of the Green Kirtle, also called Queen of Underland and Queen of the Deep Realm, is the main antagonist in "The Silver Chair" by C. S. Lewis.  She is sometimes called briefly the "Green Lady" (on analogy with Jadis, the "White Lady"), and she is known also as the "Emerald Witch"; neither name, however, appears in Lewis's text.  She enslaved Prince Rilian of Narnia and a horde of gnomes by her witchcraft, and planned to use them to take over Narnia.  She is foiled by three friends of Aslan: Eustace Scrubb, Jill Pole, and Puddleglum.

Camilla Power: Camilla Joy Cynthia Power (born 13 November 1976) is an Irish-born English actress.  She portrayed Jill Pole in BBC's TV adaptation of the book "The Silver Chair" by C.S. Lewis, and in adult life she played teacher Lorna Dickey in BBC One serial "Waterloo Road".

Mr. Tumnus: Tumnus is a fictional character in C. S. Lewis' series "The Chronicles of Narnia".  He is featured prominently in "The Lion, the Witch and the Wardrobe" and also appears in "The Horse and His Boy" and "The Last Battle".  He is close friends with Lucy Pevensie and is the first creature she meets in Narnia, as well as the first Narnian to be introduced in the series.  Lewis said that the first Narnia story, "The Lion, the Witch and the Wardrobe", all came to him from a single picture he had in his head of a faun carrying an umbrella and parcels through a snowy wood.  In that way, Tumnus was the initial inspiration for the entire Narnia series.

C. S. Lewis: Clive Staples Lewis (29 November 1898 – 22 November 1963) was a British novelist, poet, academic, medievalist, literary critic, essayist, lay theologian, broadcaster, lecturer, and Christian apologist.  He held academic positions at both Oxford University (Magdalen College, 1925–1954) and Cambridge University (Magdalene College, 1954–1963).  He is best known for his works of fiction, especially "The Screwtape Letters", "The Chronicles of Narnia", and "The Space Trilogy", and for his non-fiction Christian apologetics, such as "Mere Christianity", "Miracles", and "The Problem of Pain".

Eustace Scrubb: Eustace Clarence Scrubb is a fictional character in C. S. Lewis's Chronicles of Narnia.  He appears in "The Voyage of the Dawn Treader", "The Silver Chair", and "The Last Battle".  In "The Voyage of the Dawn Treader", he is accompanied by Edmund and Lucy Pevensie, his cousins.  In "The Silver Chair" and "The Last Battle", he is accompanied by Jill Pole, a classmate from his school.

The Chronicles of Narnia: Prince Caspian: The Chronicles of Narnia: Prince Caspian is a 2008 high fantasy film based on "Prince Caspian", the second published, fourth chronological novel in C. S. Lewis's epic fantasy series, "The Chronicles of Narnia".  It is the second in "The Chronicles of Narnia" film series from Walden Media, following "" (2005).  The four Pevensie children (William Moseley, Anna Popplewell, Skandar Keynes, and Georgie Henley) return to Narnia to aid Prince Caspian (Ben Barnes) in his struggle with the "secret" help of Aslan (Liam Neeson) for the throne against his corrupt uncle, King Miraz (Sergio Castellitto).  The film was released on May 16, 2008 in the United States and on June 26, 2008 in the United Kingdom.

The Chronicles of Narnia: The Silver Chair: The Chronicles of Narnia: The Silver Chair is an upcoming fantasy adventure film based on "The Silver Chair", the fourth novel published in C. S. Lewis's epic fantasy series "The Chronicles of Narnia" (and sixth in internal chronological order).  It is intended to be the fourth installment in "The Chronicles of Narnia" film series, and the first film in the series to be produced by C. S. Lewis Company.  This will be the first film in the series to be distributed by TriStar Pictures and Entertainment One and the first not to have the involvement of Walden Media.  The film's release date has yet to be announced.

Jill Pole: Jill Pole is a major character from C. S. Lewis' "Chronicles of Narnia" series.  She appears in "The Silver Chair" and "The Last Battle."

Underland (Narnia): The Underland is a fictional location in the children's fantasy series "The Chronicles of Narnia" by C. S. Lewis.  Described by Lewis as lying beneath the land of Narnia, Underland appears mainly in The Silver Chair, where Eustace Scrubb and Jill Pole travel under the ground to reach it in their search for Prince Rilian.  They find him in Underland and release him from his enchantment by The Lady of the Green Kirtle.

Supporting paragraphs: Jill Pole C. S. Lewis
Answer: Clive Staples Lewis