Fair play to Tramp Press for reissuing Macardle's work. She was a writer and historian and tour de force active in the first half of the 20th century. As well as writing perfect prose, she criticized the decrement of women's rights under de Valera's government and chronicled the Irish war of Independence in her book The Irish Republic.
The Uninvited is a ghost story about a haunted house but also a critique on confining women and a riposte to the cult of motherhood.
I feel Irish Murdoch might have 'borrowed' pretty heavily from this for The Sea, The Sea.