Read it through once

No notice was taken of Amy's flight, except by her mates; but the sharp-eyed demoiselles discovered that Mr. Davis was quite benignant in the afternoon, also unusually nervous. Just before school closed, Jo appeared, wearing a grim expression, as she stalked up to the desk, and delivered a letter from her mother; then collected Amy's property, and departed, carefully scraping the mud from her boots on the door-mat, as if she shook the dust of the place off her feet.