*Never Never* is a collaborative novel by Colleen Hoover and Tarryn Fisher. It is a young adult romance and mystery novel that follows the story of Charlie and Silas, two high school students who have been in a relationship but find themselves in a strange situation where they have lost all memories of each other. As they attempt to piece together their past and uncover the truth behind their memory loss, they must navigate their complex feelings and uncover hidden secrets. The novel explores themes of love, identity, and the impact of memory on relationships.