On the afternoon of 3 March 2008, the Star Ship Argonaut lifted off from Earth and set course on the Long Passage to Alpha Centauri. The builders intended that the crew establish a colony on one of Alpha Centauri's planets and then bring Argonaut back to Earth. The ship never returned and no trace of her was ever found.
In the year 2351 Lars Heldrigsson joined the crew of the Star Ship Ganymede, scheduled to fly to Vega III. Once the ship entered space, Lars and the other 21 crewmen discovered that the ship was actually going to the planet Wolf IV to search for the lost Star Ship Planetfall. This unprecedented change of plan was made more disturbing by the presence of fusion bombs in the ship's hold. Angry at being effectively shanghaied onto a dangerous mission, some of the crew attempted to take control the ship. The mutiny failed and, threatened with abandonment in interstellar space, the mutineers agreed to continue on the mission.
Wolf IV was a cold, gray, cloud-covered planet. On arrival, a scout spotted what appeared to be the wreckage of the Planetfall lying on a mountainside, and also caught a glimpse of what he took to be a city in a valley beyond the mountains. The crew landed Ganymede on a river delta 75 miles from the wreck, and landing parties went out to familiarize themselves with the environment. At night the mutineers sabotaged the communications equipment and returned to the ship. Lars discovered the betrayal and he and other crewmen pursued the mutineers, but when they got back to the delta the ship had vanished, though no one heard or saw it blast off.
With no other option available to them, the men made the arduous climb to the wreck, hoping to find food, generators to recharge the batteries in their heater suits, and possibly a means of communicating with Earth. But the wreck is not the Planetfall, it is the Argonaut. The men's last, faint hope was to find the city that the scout thought he saw in the next valley.
The men trudged onward, over the pass, and down into the valley. The fog lifted and the men saw a three-dimensional kaleidoscope, filled with people, floating several hundred feet above a meadow. Lars was taken into the city where he met Peter Bingham, Ganymede's other Officer-in-Training. Lars and Peter were treated as honored guests by the City-people, who possessed telekinetic powers (which they call teledynamics), the ability to change the forms of matter and energy by thought. Meanwhile, Planetfall and Ganymede were being kept in storage, with their crews in state of deep sleep.
The City-people subjected Lars and Peter to some kind of training but were unable to explain what it was meant to accomplish. They eventually discovered that they were being trained to develop their own teledynamic abilities, and that the training succeeded. The City-people, descendants of the babies that aliens found in the wreck of the Argonaut, then freed the other men and allowed them to take their ships back to Earth, with Lars and Peter as ambassadors of a new order of reality.
The breaking of the plot deadlock - by having Lars and Peter develop the latent psychic powers that the City-people had been nurturing in them - resembles a similar breaking of a plot deadlock found in The Angry EspersbyLloyd Biggle, Jr.,[1] in which an Earthman stranded on a strange planet must develop his latent psychic abilities in order to deal with the beings around him.
Virginia Kirkus at Kirkus Reviews (1957 Oct 25). Ms. Kirkus wrote, "Ad astra again – this time aboard the SS Ganymede with Lars Heldrigsson. Lars lives in the year 2008. Iceland was home to Lars, with flourishing wheat fields long since established by Lars' grandfather. His first star-run should have lasted two months, for a embarkation the Ganymede's goal was Vega III for a final check on a new colony site for men from over-populated earth. But Lars had barely gotten his 'space legs' when he began to suspect that Peter Brigham's presence on board presaged an entirely different destination – one that would involve Lars in attempted mutiny. This is no ordinary star-jump; author Nourse has conceived a really credible plot with three dimensional characters motivated by plausible reasoning. Furthermore, he has a most uncanny ability to visualize the strange sensations and settings of the world of the future. The season's best juvenile science fiction fabrication to date."[5]
Clute, John. "Nourse, Alan E." The Encyclopedia of Science Fiction. Eds. John Clute, David Langford, Peter Nicholls and Graham Sleight. Gollancz, 4 Nov. 2014. Web. 8 Nov. 2014.
Tuck, Donald H. (1974). The Encyclopedia of Science Fiction and Fantasy. Chicago: Advent. pg. 333. ISBN0-911682-20-1.
