The Fat Bride They Laughed At Became the Vampire Queen

Mute, magicless Elena is forced to replace her sister as dying vampire heir Adrian's blood bride. If he dies, she dies too. But Elena's hidden words come true, at great pain. She secretly heals Adrian. He learns her secret, protects her, and recovers. His family loves her. Her sister regrets rejecting him but is cast out. Adrian asks Elena to stay, and she chooses love.