One Child is a book by American author and psychologist Torey Hayden. It was first published in the United States in 1980. This book has been translated into 27 languages and dramatized as an interactive opera. In 1994, the story was adapted as a made-for-television movie on Lifetime), entitled "Untamed Love" and starring Cathy Lee Crosby.
The book opens with Hayden, a helpful education teacher, reading a newspaper article about a six-year-old girl who attempted to burn a three-year-old boy a couple of days prior, but was discovered before the boy was killed. As there was no place for her at the hospital, she ended up as a student in Torey's class, where she remains for about five months.
The material behind this book is based on the author's experiences. A sequel, The Tiger's Child, was published in 1995.