Tuhia he tomokanga mo tenei waahanga - Ko tana pukapuka tuatahi i whakaputaina ko te kohinga waiata o te tau 1925 "The Espalier", i whakamoemitihia e A E Housman me Arthur Quiller-Couch. I whakatenatena ia ki te tuhi pakiwaitara e David Garnett. Ko nga pukapuka a Warner ko "Lolly Willowes" (1926), "Mr Fortune's Maggot" (1927), "Summer Will Show" (1936), me "The Corner That Held Them" (1948). Ko nga kaupapa e hoki mai ana ka kitea i roto i te maha o ana mahi. Kei roto i enei ko te whakakahore i te Karaitiana (i roto i te "Mr Fortune's Maggot", me te "Lolly Willowes", i reira ka waiho te kaiwhakaari hei tohunga makutu); te tuunga o nga wahine i roto i nga hapori rangatira ("Lolly Willowes", "Summer Will Show", "The Corner that Held Them"); te taatai kino, te taatai ranei ("Lolly Willowes", "Mr Fortune's Maggot", "Summer Will Show"); me nga whakaahuatanga lyrical o te whenua. Ko te "Mr. Fortune's Maggot", e pā ana ki tētahi misionare i ngā Moutere o te Moananui-a-Kiwa, kua whakaahuatia hei "tuhituhi whakahianga, anti-imperialist". I roto i te "Summer Will Show", ka haere te wahine rangatira, a Sophia Willoughby, ki Paris i te wā o te 1848 Revolution
ka aroha ki tētahi wahine. Ko te "The Corner That Held Them" (1948) e arotahi ana ki nga oranga o te hapori nuns i roto i te whare karakia o te wa o mua.