Fighting debt and a strangely unlucky mill, a sweet, subtle love story, and a family bond weave together in this skillful reimagining of Rumpelstiltskin (or Jack Spinner, here). This is one of my favorite retellings, rich and deeply layered, with more nuance than many of the books aimed at the same age group.
It won a number of awards, and having read it, I can see why. If you haven't read this one yet, you're in for a treat.
Also check out Ms. Bunce's website for more information on this and her newest book, Star-Crossed.