you must know what is left , she spoke . there was no response , but i thought i could hear faint crying . `` that would be a hope hoped in vain . '' `` they do n't know there 's an agent missing . it would become his new habitat , his protective cover , and he would not be safe anywhere else in the world . because , let 's face it , spy schools have students , and students have parents , and parents are going to ask questions . 