when the meal was finished, ozana said, "it will please you to learn that my studies which i completed late last night revealed that the mimic king and queen have accomplished no real harm in the emerald city. however, queen ra has succeeded in doing something that has surprised me. she has thrown up a magic screen about her activities which has made it impossible for me to discover whether she has found the spell that would release the mimics from queen lurline's enchantment. it is logical to believe ra has failed, since, if she had discovered the spell, she would surely have used it to permit the mimic hordes to overrun oz."