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An exoanthropologist from the planet Mars, stranded on Earth, is rescued by Tim O'Hara, a newspaper reporter who introduces the Martian to his friends and the authorities as his uncle Martin.

After a middle-aged male alien crash lands on Earth, a young male human who is a newspaper journalist takes him in and convinces others that the alien is his uncle. Together, they experience countless wild adventures and get themselves in tricky situations where the alien has to use his powers.—RECB3

Exigius Twelve and a Half, an exoanthropologist from the planet Mars, becomes stranded on Earth after his one-man spaceship narrowly misses a NASA rocket plane and crashes near Los Angeles. The alien is rescued by Tim O'Hara, a newspaper reporter who explains the Martian to friends and authorities by introducing him as his Uncle Martin. "Uncle Martin" looks human, except when he extends his retractable antennae with which he can become invisible. His special powers and unusual illnesses present a constant challenge to Tim in his efforts to preserve his friend's cover.—ABGilpin