psychological-compatibility

The chapter details the selection and launch of the first human expedition to Mars, the Envoy, which mysteriously disappears after landing. Decades later, a second expedition, the Champion, finds one survivor, Valentine Michael Smith, who was raised by Martians and is biologically human but culturally and psychologically Martian. Captain van Tromp argues for Smith's careful acclimatization to Earth, emphasizing that Smith is not simply a man but a unique hybrid shaped by his Martian upbringing.