Ivy Guerin has always been more focused on science than her sensual appetite. She's one of the top doctors in the field of genetics, working closely with the Shar from the moment they were revealed. She’s honored to be included on a top secret mission that involves space travel. But the biggest surprise is finding out she's Kade D’Shar’s mate. Thrust into an alien mating period, Kade must balance his burgeoning romance with Ivy and his mission to defeat a powerful enemy. Their journey is full of ups and downs, forcing him to dig deep inside and reconnect with the savage genes of his alien race. As he redefines what it means to be a D’Shar man, he realizes in order to survive they all must undergo a surrendering.