It was like a frightful nightmare--the stealthy, breathless chase which followed. She could not stop the boys in their mad search, could not command their attention a moment to explain. In and out they darted--fourth-grade, fifth-grade, sixth-grade, seventh! Every crack and cranny, every cloaking-room and teacher's desk was made to prove its innocence of sheltering the fugitive spy. The scampering boys were just finishing their search of the seventh grade when Louise found herself at the foot of the garret steps.