by Kristin Cashore
Young Adult fantasy novel. In the quasi-medieval Seven Kingdoms, Gracelings are people born with one special talent which gives them supernatural abilities. They are marked with mismatched eyes, of different colors. Katsa is Graced with killing, and forced to work as an assassin, executioner, and thug for her king, which she hates. Until one day she meets her match, a handsome young prince named Po, who is Graced with fighting. As they team up to investigate the kidnapping of Po's grandfather, they begin to unravel a larger mystery in the Seven Kingdoms, and also to fall in love....
Ok, so WTF Devo Girl, you are asking, where is the disabled character? Well, I can't tell you, that would ruin the surprise. There is a blind character at the very very end of the book, just be patient. I enjoyed this book a lot. It's a fun read, and those last few pages packed a big devo punch for me.
ETA: There are two more books in the Graceling universe: Fire takes place about 50 years before, in a different kingdom, with different characters. Bitterblue is the sequel to Graceling, with the events and characters picking up eight years later. Although they are secondary characters in the sequel, Po and Katsa are in it a lot, along with a lot of other characters from the first book. Slightly higher devo content than the first book, and still a really satisfying read.