"Help! Help!" Fortunately, they were passing the door at that instant and heard her muffled cries.
"Here," she cried again, and they saw her at last, clinging desperately to the window ledge.
"I don't dare open the window," exclaimed David, thinking aloud.

"The slightest jar might make her lose her balance.

Grace," he cried, "I'll have to break out the upper sash.

Lower your head as much as possible and close your eyes." Another instant, and Grace was crouching in a shower of broken glass, which fell harmlessly on her back and the top of her head.

David knocked off the jagged pieces at the lower end, and Grace climbed nimbly over the sash.
"There's no time for explanations now," she cried.