She is asked to make a diplomatic marriage to the Calormene Prince Rabadash. She finds him gallant at tournaments in Narnia, but tyrannical and repellant on his home ground. In The Last Battle, Susan is conspicuous by her absence. Peter says that she is "no longer a friend of Narnia".

In the Prince Caspian novel, Peter and Susan are told they can't return to Narnia simply because they are "getting too old." Later, in the final book of the Chronicles Of Narnia series, The Last Battle, Susan is said to be “no longer a friend of Narnia” and “interested in nothing nowadays except nylons and lipstick and ...

Lucy does not marry in C.S. Lewis's The Chronicles of Narnia. In Prince Caspian, The Lion, The Witch and The Wardrobe, and The Last Battle, Lucy is too young to marry, being eight, nine, and seventeen respectively in those books.

Reasons for ban – “graphic violence, mysticism, and gore,” “politically incorrect,” and could be offensive to non-Christians due to the Christ-like qualities of Aslan.