This is a retelling of Beauty and the Beast. The human characters were beautifully written and the story enjoyable. However, the rose-gardening sections got a bit tedious and the Beast was a bit dull. I like roses and gardening, but not that much. Using manure from a unicorn was definately an interesting (and amusing) use of unicorns.
I much preferred the retellings by T. Kingfisher (Bryony and Roses) and Melanie Karsak (Beauty and Beastly).