“The Adepts of Exchange and Returns Are Not Subject” is a novel by Nadezhda Mamadaeva. It is part of the cycle “The Light and the Dark,” a genre of romantic fantasy, humorous fantasy.
“Light magicians are the right kind of people to the point of tooth-grinding rage—they perfectly know what is allowed and what isn’t, and how it can be done when it’s not allowed. With their calmness they can bring a black sorceress to a white heat. And if they spurn any rules—then only with a roaring firestorm” — from the notes of an exiled mentalist who was sent for exchange.