I found Elizabeth Chadwick "by accident" when I'd finished an Amy Tan whilst holidaying in Croatia a couple of years ago - Shadows & Strongholds looked to be about the least dreadful offering on the bookshelf provided by my tour operator (Saga) but I didnt hold out a lot of hope for it.... I was SO wrong! A real page-turner, it re-kindled my teenage love of the historical novel and I went on to read eleven further novels by EC. So I can honestly say I know her work, and I must say her style, content, narrative and research have got better and better throughout her writing years. The Running Vixen has been re-published recently, but it was written in the early 1990's and as such, it is less well-rounded and "finished" than later work. She doesn't always explain the relationships, the family structures, the political backstories of her characters, and a reader new to the period (her writing covers the periods 1066 - 1230 roughly) will be struggling. Her later work (my favourites are Daughters of The Grail, The Conquest and The Love Knot) are far more focused on the politics in the larger world into which she expertly and most engagingly weaves the stories of love, jealousy, revenge etc of the men and women who occupy the stories. She has a way of making me, at least, feel as if (absurdly!) she actually lived in the times she writes about, because she is so detailed in her descriptions of everyday life - food, clothing, weaponry, occupations, markets, music, buildings, horses etc- she really does make the reader feel present in the time, you can almost smell it!
So, whilst this is not EC's best work, more of a bodice-ripper than the later stuff, nevertheless for her fans, this is a worthwhile read - but I'd recommend new readers begin with something later.