I adore this author's books, they are so cleverly put together with all the different threads from different periods in time coming together at the end. This one I felt, had the most exciting present day climax out of all the ones I've read(not read Spiderlight yet), it was very tense with the killers loose in the tower. And what happened in India was horrific, it makes your skin crawl to think of what the children went through, especially when they were hiding in the tower.
I was almost put off by another review of this book which said you need a strong stomach to read it, well I am very squeamish and I coped, there are some unpleasant bits but they're not very graphic so it's not really gruesome.
BUT, although it's still a wonderful read and definitely a 5 star book, I didn't think it was her best one. Don't let that put you off though, if you have never read Sarah Rayne before, give yourself a treat with any of her books, they are all fantastic.