This is a beautifully written, thoughtful and engaging book. I enjoyed Miss Garnett's Angel many years ago and tried The Cleaner of Chartres on the strength of it. I was very happy that I had because I enjoyed it very much.
Salley Vickers is a marvellous storyteller and she very subtly creates very believable and recognisable characters, showing their inner lives with gentle penetration and, on the whole, great compassion. I found this aspect of the novel especially involving and her gently-painted psychological insights are what have lingered most strongly with me, and her portraits of aspects and origins of kindness and malice, of decency and selfishness, of humility and self-certainty and so on were very shrewd and delicately done.
Vickers also generates a wonderful sense of place, and the redemptive tale of Agnes, an orphan lost in the world and despised by some but finding her place among people who have come to respect and admire her is both captivating and wise in itself. There are notable similarities to Miss Garnett: the central character is a lonely woman who, without overtly searching, stumbles toward spiritual and personal fulfilment, the central setting is a cathedral where an ancient image is being restored and so on. Nevertheless, it works very well as a tale in its own right and I never felt I was being fobbed off with a re-hash.
You may get a flavour of the style from this: "The sun, shifting in its westward path, was already lighting the South Rose window and smudges of colour, refracted through the glass, were blessing the grey stone of the walls by the scaffolding that concealed the benign Blue Virgin." I found that, and a lot else in the book, extremely evocative and read it all with unalloyed pleasure and I recommend it very warmly - it's a really enjoyable read which will stay with me for a long time.