Booker-winning author of The Luminaries, Eleanor Catton's third novel, Birnam Wood, is a psychological thriller set in a remote area of New Zealand, where scores of ultra-rich foreigners are building fortress-like homes in preparation for a coming disaster. It follows the guerrilla gardening outfit Birnam Wood, a ragtag group of leftists who move about the country cultivating other people's land. Their chance encounter with an American billionaire sparks a tragic sequence of events that questions how far any of us would go to ensure our own survival — and at what cost.