Gemini god

The human race is in decline. Soon its numbers on Earth will drop below survival Level. Then New Carthage, a world inhabited by strange, cheetah-like creatures, is discovered. Could contact with these aliens provide a lifeline for mankid? Using the twins, On Lo and Ti, experiments are started to create a human empathetic telemetry system between the two worlds. But the encouragement of the cloeseness factor between the twins provides a catalyst for a far mroe fantastic event...