Read it through once

The idea amused Jo, who liked to do daring things, and was always scandalizing Meg by her queer performances. The plan of "going over" was not forgotten; and when the snowy afternoon came, Jo resolved to try what could be done. She saw Mr. Laurence drive off, and then sallied out to dig her way down to the hedge, where she paused, and took a survey. All quiet,--curtains down at the lower windows; servants out of sight, and nothing human visible but a curly black head leaning on a thin hand at the upper window.