Ursula K Le Guin
Appears on list
An official from an interplanetary federation is called in to arbitrate peace on a planet whose inhabitants are technically advanced, androgynous, and have telepathic powers. Two people, until recently strangers, find themselves on a long, tortuous and dangerous journey across the ice. One is an outcast, forced to leave his beloved homeland; the other is fleeing from a different kind of persecution. What they have in common is curiosity, about others...
When a young man in the Uplands blinds himself rather than use his gift of "unmaking"--a violent talent shared by members of his family--he upsets the precarious balance of power among rival, feuding families, each of which has a strange and deadly talent of its own.