Who wrote the book series that includes a character known as Queen Susan the Gentle?
Susan Pevensie:  During her reign at the Narnian capital of Cair Paravel, she is known as Queen Susan the Gentle or Queen Susan of the Horn. 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.
Clive Staples Lewis