From acclaimed author Han Song comes the final installment in Yang Wei's journey through a dystopian hospital system, touching down on the red planet, where more than Yang's nightmare is reborn. The Hospital Ship is no more, and Yang Wei awakens to find himself at the mercy of monstrous doctors and the tumult of his own mind. Not helping matters, of course, is the Mars Hospital's Pool of Dead Souls. A ghastly body of water, it traps...