Janet Lee Carey.
Titles I've written about:
I loved the first half of this book. The descriptions of daily life in Tess' village, the whole witch-hunting sequence (thumbscrews = *shudder*), the complicated relationship between Tess, Poppy, and Meg (who are forced to run with Tess after she gives up their names under torture), the escaping, the traveling, the escaping again. It was all very exciting, and felt like the best sort of historical fiction/fantasy.