Luna's brother is one of thousands of Fae who have been trapped on the mortal side of the Veil for years.
Though all of Luna's efforts to open the main crossings between Faerie and the mortal world have failed, she has figured out a way to open a tiny wandering Veil, just long enough for her to cross over, find her brother and bring him home again.
Unfortunately, right as she's about to launch her admittedly somewhat risky plan, the overbearing Tarek shows up, demanding she include him in everything. Even worse? It turns out he's her mate.