Forest of Secrets was first released in the US as a hardcover on 14 October 2003. It was then released as a paperback on 5 October 2004 and an e-book on 4 September 2007.
Forest of Secrets first appeared in print in the US as a hardcover book on 14 October 2003. It then transitioned to paperback and eventually digital formats, with releases on 5 October 2004 and 4 September 2007, respectively.