Queen of Wands by Katee Robert

When Jenny O'Keirna gets a chance to slip her older brother, the new king of Hansarda's, leash, she jumps at it, even if it means playing babysitter to a too-smart-for-his-own-good inventor. She's not expecting the attraction that sparks between them—or that Sanctify is just as desperate to take him for their own.

Never in Mac Flannery's wildest dreams did he imagine Jenny would be the one sent for him. He sees beyond the mad grin the sexy princess of Hansarda presents to the world, and that combination of vulnerability and wicked humor is a siren call he can't resist.

But Sanctify is always three steps ahead of them. On the run—and unable to keep their hands off each other—Jenny and Mac devise an insane plan: kidnap the leader of Sanctify, and stop this war once and for all. Unfortunately, they've just played right into his hands...