content: but the princess stopped him . she said that if she were forced to go to the palace she would turn at once into a shadow , and even as she spoke she began to lose her form . her figure faded from his sight while he looked . the emperor then promised to leave her free if only she would resume her former shape , which she did .
answer: leave her free .
question: what did the emperor promise to do if she would resume her former shape ?
target: what did the emperor promise to do if she would resume her former shape ?
references: what did the emperor promise to do if she would resume her former shape ?