Conflict and character are the heart of good fiction, and good mystery has both of those in spades.
Diana GabaldonYou are my courage, as I am your conscience," he whispered. "You are my heart---and I your compassion. We are neither of us whole, alone. Do ye not know that, Sassenach?
Diana GabaldonI meant it, Claire,' he said quietly. 'My life is yours. And it's yours to decide what we shall do, where we go next. To France, to Italy, even back to Scotland. My heart has been yours since first I saw ye, and you've held my soul and body between your two hands here, and kept them safe. We shall go as ye say.
Diana Gabaldon