An long time ago, psychic powers appeared mysteriously in the human population, leading to irrevocable change in history: a period of terrible chaos, followed by an age of prosperity. Sarah Wenders, an ordinary person in a world that has been extraordinary for more than a hundred years, lives a peaceful life in the city of Integrity, the sixth of six cities on Mars. At least, until she receives a sudden notice that her father has died in an industrial accident. She makes an impulsive decision to rescue a military AI off the street, antagonizing the City's more unsavoury elements, and things only go worse from there...until she finds herself in the midst of conspiracies that cause her to doubt everything that she has ever learnt. "Why do you think we decided to call them 'psychic' abilities?"