Regarding the Magician, Who Was, in Fact, a Two-Faced Liar

Laust, Narsena, and Ralma confront Mist and are told that to end the uprising, Ralma must commit all of her magic to creating a barrier while Mist and Hanzum hunt down the lord of the labyrinth. Ralma agrees but reminds Laust that Mist cannot be trusted.