Saraqael hadn't intended to fall in love with Kate. It shouldn't have even been possible. His kind didn't experience emotion, and they certainly weren't supposed to become attached to humans.
When he discovers that Kate's dying and there's nothing he or her human doctors can do for her, Saraqael realizes how deep his feelings for her run. And he understands just how far he's willing to go to save her.
He vows to search until he finds a way to save her life. With the help of his best friend, Quincy, he embarks on a quest spanning the Estilorian planea quest that will forever change the future of his kind.