Pretty Much Wingless

"Where are the rest of the royal portraits?"
"This is all that there is," the guard replied gruffly.
"But the four kingdoms have been around for millennia, how could this be it?" I protested, moving towards the final portrait. "This only goes back a couple of hundred years!"
The guard frowns at me, then turns away.
"This is all that there is"
~~~~~
Cassandra House was left at an orphanage as an infant, and when the time comes, she doesn't get chosen to become a bride. Instead, she is chosen to work at the Northern Palace as a maid, where she catches the attention of a certain prince. Her crippled wings set her out from the rest of the crowd, but is that all that makes her special, or is there something else that lies beneath?