As Ibrahim Ali says, it is a great shame that this book was never finished. All of Farrell's mature novels - 'Troubles', 'The Singapore Grip', 'The Siege of Kirshnapur' (which won the Booker Prize in 1973) are distinctive, individual and very enjoyable to read (he had a wit in his writing, sometimes gentle, sometimes caustic, which is very pleasing). There's enough of a book here (151 pages) to make it clear that this was going to be remarkable, and what there is is well worth reading. It's set in the 'hill station' of Simla, about twenty years on from the Indian Rebellion (or Mutiny if you will). Dr. McNab, the wise and long-suffering Scottish doctor of 'Krishnapur', is there with his wife Miriam (also in the earlier book, but in mourning as a recent widow) and a niece, Emily, who is silly, naive or perhaps just as you'd expect a young girl of that class at that time to be. As in 'Krishnapur' there is a 'fallen woman', but in addition Farrell focuses on religious controversy in the Church of England in the person of the brave but physically fragile Rev. Kingston, whose high-church approach has alienated some of his congregation in Simla and made the Bishop uneasy. The book 'ends' with an intensely dramatic scene in his church as he tries to conduct a service against a background of abuse and cat-calling from outside.
There are essays by John Spurling, Margaret Drabble and Malcolm Dean in the book - all helpful - and Farrell's Indian Diary, written while he was in India conducting his researches for his novels, is also there. It casts considerable light on his experience of and attitude to the country, and is also a very good read.
Don't be put off by the fact that this is only half a book (if that). Every word of it is worth reading, and if you like Farrell's work, it's an essential read.