The tragic fate of the courageous Swedish diplomat Raoul Wallenberg after he was seized by Soviet forces at the end of World War II has never been adequately explained. For more than four decades afterward, Soviet officials refused to explain why Wallenberg was detained or what happened to him afterward. Even after the Soviet Union broke apart, officials in Moscow were averse to divulging much information about Wallenberg. The book Auf den Spuren Wallenbergs , edited by Stefan Karner, brings together contributors from several countries who draw on the latest releases from Moscow archives and produce up-to-date essays about what is known at this stage about Wallenberg's mysterious disappearance.