It was released in Germany by Rowohlt Verlag, under the title Das Mädchen im Wald (The Girl in the Woods), in October 2007. Orion Publishing Group published Promise Not to Tell in the United Kingdom in 2008.
A German edition of the book, titled Das Mädchen im Wald (The Girl in the Woods), was published by Rowohlt Verlag in October 2007. Meanwhile, Orion Publishing Group made Promise Not to Tell available in the UK in 2008.