Read it through once

"Hum!" said Jo, still intent upon her sister's face; for the bright color faded as quickly as it came, the smile vanished, and presently a tear lay shining on the window-ledge. Beth whisked it off, and glanced apprehensively at Jo; but she was scratching away at a tremendous rate, apparently engrossed in "Olympia's Oath." The instant Beth turned, Jo began her watch again, saw Beth's hand go quietly to her eyes more than once, and, in her half-averted face, read a tender sorrow that made her own eyes fill. Fearing to betray herself, she slipped away, murmuring something about needing more paper.