Mordant is a kingdom where mirrors function as magical devices capable of viewing other worlds and the Imagers that craft them have the power to translate both the objects and people they see in those mirrors into their own world. Imagers spend years expertly crafting their mirrors to achieve many powerful abilities, both good and evil, but one thing they always avoid making is a flat mirror. That is because anyone who sees their own reflection in a flat mirror, or attempts a translation in one, loses their mind. Imagers are also capable of performing auguries by shattering a mirror into pieces. The resulting shards of the mirror reveal glimpses of the future, although the resulting images are often subject to multiple interpretations. The Congery of Mordant has performed just such an augury and from the resulting images the Masters have concluded that a champion must be translated to save their kingdom from destruction. They have also seen that Apt Geraden, an expendable apprentice of little promise, should be the one to perform that translation. When Geraden enters the mirror to perform the translation he returns not with the expected champion but rather with Terisa Morgan, who he plucked right out of her Manhattan apartment building.
The Mirror of Her Dreams - the first half of Mordant's Need