This remarkable trilogy is set in Australia during the gold rush. It consists of "Australia Felix," "The Way Home," and "Ultima Thule." The plot revolves around Richard Mahony and his wife. Amidst his initial happiness with his wife Mary, Richard Mahony grows disenchanted with his structured life. Mary, who is subjected to the continual shattering of her security as Richard desperately tries to free himself, does not comprehend his fear. He is ever antsy, always searching for a deeper connection that will assert and give meaning to his life.