Host Planet Earth

The first spaceship has been launched and its crewmen soon become infected with a strange malady. Can they be allowed to return to Earth? (Courtesy Jerry Haendiges website)
65/xx/xx 1 The Beginning 65/xx/xx 2 The Empty Minds 65/xx/xx 3 The Pattern Emerges 65/xx/xx 4 The Gemini Factor 65/xx/xx 5 The Arrival 65/xx/xx 6 The Price of Freedom