Dragon Heat by Sher Dillard

Laila Mason lives by two simple rules. There are monsters everywhere, and the only thing she can rely on is her trusty dagger. The only life Laila Mason has ever known is the rough streets. It is all she will ever know. So, when offered her dream, a Prince and a castle. What girl could say no? Flint discovers that family obligations are not the only reason for this fierce need to protect Laila. There is something more between them. Of course it is all at risk if she ever discovers his secret.