I picked up Cross My Heart off of either the new books or the shelving area at the library. and I enjoyed it so much that I then checked out Heart of Glass, the sequel. These are straightforward historical YA (no fantasy elements), full of intrigue and politics and women making themselves powerful. They're pretty fluffy, and they're very fast reads. (I read the first one in a few hours one afternoon, and the second one in the first half or so of a day of jury duty.) They center around Laura, who becomes involved with the Segreta, a secret society of women trading in secrets in 16th century Venice. Some of the romance is a little overblown, but not in a too horribly annoying way. I really enjoyed the machinations of the secret society of women, and Laura is a likeable protagonist. Mostly, they're just fun, and I recommend them if they seem like the kind of thing you might like.