The ""Hidden Land"" is the bleak borderland of Outer Mongolia, narrow gateway to the free world. The shadowy figures attempting to cross it are led by British agent Giles Priest who is faced with the task of helping them escape from the Chinese Reds. The ten refugees are disguised as part of a nomadic tribe but they are faced with more danger from intra-group dissension and treachery than from wandering Chinese patrols and/or the physical demands of the desert. Each step is described in minute detail and there are also vivid glimpses of a Chinese satellite in the making. Intelligent adventure.