Bab 60: 60 Tears of Blood (AVOT)

Rhain's reply was a solid and unyielding, "No!"

His mind seemed to recoil at the mere thought, the world around him darkening, as though cloaked in the heaviest of shadows. The very idea of cursing her was too unbearable to consider. Turned into the undead altered one in ways too profound and ways he didn't find suitable for Daisy. He couldn't bear to rob her of her defining characteristics, to steal her joy of basking in the sun's glow.

He refused to witness her morph into a creature deriving perverse pleasure from pain, whether self-inflicted or imposed on others. He couldn't endure watching her lose her warmth, her heart slowing, ceasing to beat until her once-vibrant body turned as cold and lifeless as a winter's midnight. The concept of time would dissolve into an endless void of darkness. Ultimately, everything would be reduced to nothing.