THE CITY & ITS UNCERTAIN WALLSWhat will you find in the city? A love story, a quest, an ode to books and to the libraries that house them, a breathtaking new novel about the boundaries between worlds and individuals, from the Sunday Times bestseller. When a young man's girlfriend mysteriously vanishes, he sets his heart on finding the imaginary city where her true self lives. His search will lead him to take a job in a remote library with mysteries of its own. When he finally