An eye for... is that blood?

the Voice

”And that is all that matters. That a cure could be made, and that you are all well again.” Smiling her understanding, she nods and guides them out into the storm. A gentle but invisible force eases the diamond and the blood out of his hands, both hovering before Ascended and goddess. The blood removes itself from the vial, dark and somehow unaffected by the lashing ran, and wraps itself around the gem until it glints a dark, crimson red.

”Nate, do you trust me?” The Voice reaches up, her fingers sliding gently against the back of his neck, into his hair, to carefully hold his head still. And before him hovers the scarlet diamond, mere inches away from his sightless eye.