A New York Times Editors' Choice A USA TODAY Bestseller A Booklist Editor's Choice For Lewis and Wren, their first year of marriage is also their last. A few weeks after their wedding, Lewis receives a rare diagnosis. He will retain most of his consciousness, memories, and intellect, but his physical body will gradually turn into a great white shark. As Lewis develops the features of one of the most predatory creatures in the ocean, his heart struggles to make peace with his unfulfilled dreams. At first, Wren resists her husband's fate. Is there a way for them to be together after Lewis changes? Then, a glimpse of Lewis's developing carnivorous nature activates long-repressed memories for Wren, and she is forced to make an impossible choice.