The Last Lady of Albessind. Tales of Riardan, #1

Struggling artist Eva Milaras is buying groceries when a bomb blast tears the store apart. A handsome man with mysterious powers saves her life, treats her like royalty, then stuffs her into a limo without a steering wheel. Caught in a deadly web of magic and intrigue, Eva inherits an aristocratic legacy she didn't know about and doesn't want - her murdered mother's genetic resistance to magic. It might mean death for her, too. Trapped in a strange world with Talak as her only ally, she has to survive the deadly schemes of her newfound relatives as they maneuver for advantage in a royal court where murder is ambition's favorite solution. As a magician bound in service to the throne of Riardan, Talak is charged with Eva's protection.
Watching over her, he fell in love with Eva long before he saved her life, but he knows his love is hopeless. She must marry a man from a royal bloodline and produce magic-resistant heirs, and he is duty-bound to protect her until she marries-regardless of his torn heart. Together the star-crossed lovers must survive intrigue and betrayal, only to discover they must choose between letting go of each other or certain death for treason. That's a choice Eva refuses to make.