The Icemark Chronicles has become a fast favorite of all my books. It's hard to choose favorites, but I'd definately put these in the top 10.
"The Cry of the Icemark" is about a young girl who's made Queen before her time. She makes desperate allies, with the aid of a warlock, to fight with her against the evil Empire. But those allies are not your typical people...they're warewolves, vampires, and giant snow leopards. We'll see if our red-haired queen and her talking creature allies can win this war!
The second book, "Blade of Fire," is about this Queen's family and one of the major battles between the Empire and the Icemark. Her old allies are still loyal, but will they come in time. Also, there's an unexpected betrayal that could affect the outcome of their survival.