A castle, a tunnel and a lost train full of Nazi treasure.<br /><br /> It is not a Hollywood film script but a real life mystery dating back decades.<br /><br /> Two people think they may now have found a Nazi German train rumoured to have disappeared in Poland near the end of World War Two – carrying away guns and looted gems as the Soviet Red Army neared.<br /><br /> “They are not treasure hunters or attention seekers,” said Jaroslaw Chmielewski, the lawyer for the pair, reportedly a Pole and a German, who have chosen to remain anonymous.<br /><br /> Local folklore has it that the train entered a tunnel in southwestern Poland near the city of Walbrzych and its local castle – never to be seen again. <br /><br /> Rumors fly of Nazi “gold train” discovery in Poland http://t.co/48Qu6WgH7W pic.twitter.com/bxuqWZlEqO— Yahoo News (@YahooNews) 20 Août 2015<br /><br /> Authorities say the pair who think they may have located it want 10 percent of the value of the train’s contents as a ‘finder’s fee’.<br /><br /> “We suspect these people have knowledge of what’s