There's just something about faeries and Elizabethan England that mix, isn't there? It seems like I can't turn around without tripping over a book that involves the two. And that's not necessarily a bad thing; I like faeries, and I like Elizabethan England. But as with most trends, it can become hard to find writers who are using the material in inventive ways. Fortunately, that's just what Seanan McGuire does with "Rat-Catcher". There are beings…