Silence and Stone (Faeries' Promise, Bk. 1)

Unicorns are now free, but other magical folk are still in hiding - except for one faerie, Alida, who is a prisoner in Lord Dunraven’s castle. That is, until she escapes and a fierce struggle begins. Alida fights to free the faeries from the terrible promise they were forced to make to Lord Dunraven - but Lord Dunraven is desperate to continue denying his people the hope they derive from the existence of magical beings.