Mary novels (Cynthia Hand)
"Welcome to Renaissance France, a place of poison and plots, of beauties and beasts, of mice and ... queens? Mary is the queen of Scotland and the jewel of the French court. Except when she's a mouse. Yes, reader, Mary is a shapeshifter in a kingdom where Verities rule. It's a secret that could cost her a head--or a tail. Luckily, Mary has a confidant in her betrothed, Francis. But things at the gilded court take a treacherous turn after the king...
Mary novels (Cynthia Hand) volume 2
When two masterminds--Mary, the daughter of Mary Wollstonecraft, and Ada, the daughter of Lord Byron--are brought together by fate, they make a shocking--and magical--discovery that draws the attention of a mad scientist.