About the book: 1969 / A fantastic story, the action of which takes place on an artificial planet created to clarify the route of a transgalactic expedition, which should head to the constellation Centaurus. A serious accident occurs in space, threatening the entire planet with disaster... And at this time, on Raper (that’s the name of this planet) there are only three fourteen-year-old children who prevent the disaster, showing courage, bravery and resourcefulness.