The whole Passage from Dragonfly in Amber:
“We are bound, you and I, and nothing on this earth shall part me from you.“One large hand rose to stroke my hair.“D’ye mind the blood vow that I swore ye when we wed?”
“Yes, I think so. ‘Blood of my blood, bone of my bone…’”
“I give ye my body, that we may be one,” he finished. “Aye, and I have kept that vow, Sassenach, and so have you.” He turned me slightly,and one hand cupped itself gently over the tiny swell of my stomach.
“Blood of my blood,” he whispered, “and bone of my bone. You carry me with ye, Claire, and ye canna leave me now, no matter what happens. You are mine, always, if ye will it or no, if ye want me or nay. Mine, and I wilna let you go.”
I put a hand over his, pressing it against me.
“No,” I said softly, “nor can you leave me.”
“No,” he said, half-smiling. “For I have kept the last of the vow as well.” He clasped both hands about me, and bowed his head on my shoulder, so I could feel the warm breath of his words upon my ear, whispered in the dark.
“For I give ye my spirit, ’til our life shall be done.”