The Trinity Paradox is a time travel novel by Kevin J. Anderson and Doug Beason, exploring the premise of an anti-nuclear activist from 1990s being transported back in time to the Manhattan Project, giving her the potential to sabotage the project in an attempt to prevent the development of nuclear weapons altogether. Her attempt to do so, however, has far-reaching and unpredictable results, changing the outcome of the Second World War and the face of the post-war world. Source: Wikipedia (en)