Spiral (らせん, Rasen) is a 1995 Japanese novel, a part of author Koji Suzuki's Ring series. It is the second in the Ring series, and a film based on the book was released in 1998. The English translation of the book was published by Vertical Press in the United States and by HarperCollins in Britain. Two direct film adaptations of the novel have been produced: the 1998 Japanese film Spiral, and the 2017 American film Rings, as well as a 1999 Japanese television series Rasen. Source: Wikipedia (en)