Through the Looking-Glass – Lewis Carroll

"It's a poor sort of memory that only works backwards."

Six months after her adventures in Wonderland, Alice steps through the mirror above her fireplace into a world where everything is reversed. The landscape is a giant chessboard, and Alice starts as a pawn, moving across the squares to become a Queen. Along the way, she meets Tweedledum and Tweedledee, Humpty Dumpty, and the White Knight.

Lewis Carroll's sequel is darker and more structured than the first book, based on the rules of chess. It continues his brilliant play with logic and language, exploring themes of time, growing up, and the nature of reality versus reflection.