His Majesty’s Dragon (2006) by Naomi Novik is an SFF novel, and one of the best examples of alternate history. It’s set during the Napoleonic Wars, on an Earth where dragons are real and are used for aerial warfare in Asia and Europe (yes, like Daenerys Targaryen). But, differently from what’s portrayed in GRRM’s novel, here the dragons of the story are intelligent and able to speak. Brilliant, daring, entertaining. Nominated for the Hugo Awards.