Which four New Zealand writers' creations mark the maturity of New Zealand novel creation?

John Lee wrote three novels, among which The Child of a Poor Family (1934) and its sequel The Chased (1936) described the miserable life in the slums with the economic depression of 1936 as the background. Robin Hyde's works are many, among which the most famous are Hell Passport (1935) and its sequel How Time was Deceived (1938), as well as the historical novel Take Your Army (1936) and the autobiographical novel Wading Birds with Long Mouth. John Mulgan left only one novel, Lonely Man (1939), which is a combination of realism and romanticism, revealing the contradiction between individuals and society, individuals and land. Sajisen is the author of the novel I saw in my dream (1949) and three volumes of autobiography, Once is enough (1973), A lot (1975) and Never Enough. But his main achievement is short stories. 1934, he published his first collection of short stories, which reflected the social life of New Zealand during the economic depression. Since then, his famous works include Conversation with My Uncle (1936), A Man and His Wife (1940) and That Summer (1940), among which A Man and His Wife is called Voice of New Zealand. He followed Hemingway's example instead of sticking to the rules. The creation of the above four writers indicates that New Zealand's novel creation has reached a mature stage.