Diana Wynne Jones is one of my favorite authors, and one of the few authors whose books I buy in hardback. Enchanted Glass is an excellent addition to her other books.
The book follows two characters, Andrew Hope and Aidan Cain. Andrew teaches history at a university, but he retires when his grandfather dies and leaves him his house and magical "field-of-care." Aidan, who lived with his grandmother until her death a week before, has run away from his foster family--mostly to escape the frightening monsters pursuing him. Aidan's grandmother was friends with Andrew's grandfather. Aidan shows up on Andrew's doorstep, and Andrew takes him in.
Jones has a brilliant way with characters. They're warm and funny, quirky and realistic. Aidan's grief over his grandmother feels very real--it hits him hard when he least expects it, as grief does; in between, he explores Andrew's field-of-care and the village, makes friends with a weredog and a giant who live on the property, plays football with some of the local kids, and starts to look forward to the summer fete. Andrew, meanwhile, is both worried about Aidan and furious at the peculiar and sinister Mr. Brown, a neighbor who seems to be encroaching on his field-of-care.
The story is fast-paced and fun, with Jones's trademark humor and interesting minor characters. Her descriptions of the countryside are masterful, and the climax of the book is satisfying. This book reminds me a bit of Conrad's Fate and The Merlin Conspiracy, two of her recent novels, but it takes place in a distinctly different world from her other books. The plot is clever and Jones reveals it slowly, allowing readers to guess along with Aidan and Andrew about what's really going on.
I would say I enjoyed Enchanted Glass thoroughly, but the very last page brought me up short. It contains one last revelation that struck me as sour and strange, without any explanation or hints beforehand. And the book just stops at that point. Many of Jones's books have awkward endings, but this one's the worst I've seen. It's a disappointing note in an otherwise excellent book.