I am drawn to Rumer Godden's books because she writes of India so beautifully. Her descriptions are evocative and true. However, I came away unsatisfied from this book. Some characters, including Alix, the governess did not make sense or seem real to me. Also I found the ending unsatisfactory.
Even so, I give 'The Peacock Spring' three stars because it held me engrossed for a day until I had finished it, and because it reminded me of when I was fourteen and in love for the first time - that sense of 'us against the world' and of being more mature than adults realise.
The author's new preface (in the 1992 edition) told too much about what was to come, so I would recommend NOT reading it until one has finished the book. Perhaps it would have been better published as an addendum.