In this post-apocalyptic novel from Newbery Medal-winning author Robert C. O'Brien, a teen girl struggling to survive in the wake of unimaginable disaster comes across another survivor. Ann Burden is sixteen years old and completely alone. The world as she once knew it is gone, ravaged by a nuclear war that has taken everyone from her. For the past year, she has lived in a remote valley with no evidence of any other survivors. But...