The novel “A Wreath of Stars” by Bob Shaw was published for the first time in 1976. Magniluct, a special glass that allows people to see in the dark, finds an unexpected application when an astronomer who is using a pair of glasses with magniluct lenses discovers a planet made of anti-neutrinos. After some time, in an African mine, the workers refuse to enter because they started seeing ghosts but they can only see them through magniluct lenses.