Slan is A. E. van Vogt's 1946 science fiction classic, first serialized in Astounding Science Fiction in 1940. It follows Jommy Cross, a nine-year-old member of the Slans — a persecuted race of telepathic mutants identifiable by the golden tendrils in their hair. After his mother is killed by a mob in the capital city of Centropolis, Jommy is taken in by an old woman and forced into petty crime, all while carrying a hidden technological inheritance from his slain father.
As Jommy grows older, he is drawn into the schemes of Earth's dictator, Kier Gray, and discovers that Slans are split into two warring factions: the tendrilled Slans, hunted by ordinary humans, and the tendrilless Slans, who secretly control air and space travel and have colonized the outer planets. Jommy's search for the truth takes him as far as Mars, where he must avert a three-way interplanetary war and confront the real nature of Kier Gray's rule.
One of the most influential novels of pulp-era science fiction, Slan won the 1941 Retro-Hugo Award for Best Novel (awarded in 2016) and gave science fiction fandom its enduring in-joke, "fans are slans."