Through the Looking-Glass is a novel by Lewis Carroll. It is the sequel to Alice in Wonderland. Set some six months after the earlier book, Alice again enters a fantastical world, this time by climbing through a mirror into the world that she can see beyond. Through the Looking-Glass includes such celebrated verses as "Jabberwocky" and "The Walrus and the Carpenter", and the episode involving Tweedledum and Tweedledee.