A spoiler is a piece of information that, when released too early, might spoil someone's enjoyment of a book, movie, story, etc. For example, information about who-done-it spoils a mystery; information about who-ends-up-with-whom could spoil a romantic story; or who wins the battle and who dies could spoil an epic about a war between good and evil. Anything about plot twists or surprises could be a spoiler. Spoiler notices or alerts are sometimes included in article before the potentially spoiling content in order to warn readers. but will appear in the upper right corner of the page.