Monarch - The Cicada Trilogy, #3

Blair Reynolds was born to rule. Worlds, that is. Destined to reign over an ancient intergalactic race, it may seem her fate is written in the stars. But she's willing to risk it all for another chance to spend forever with her true love - even if it means traveling through time and space to the other side of the universe. As far as Ash is concerned, Blair's happily-ever-after involves him, not the mere mortal with whom she seems so infatuated.
She was bequeathed to him by her father, and Ash will go to any lengths to keep Blair and her true love apart. And Ash isn't the only one. Deep in the jungles of Brazil, where tribal drums call to Blair and her true love, other forces carry out dangerous secret plans. However, Blair has secrets of her own . secrets so lethal she dares not even remember them. Secrets so painful they could ruin everything. Because some secrets kill.