She controlled herself, however.

A shy, upward glance at the stern, set face of the man whose arm encircled and held her fast had a curiously sobering effect upon her.

Their eyes met, and he smiled a friendly, reassuring smile, such as a father might have bestowed upon a daughter.
"I do not think that they will charge me with blundering this time," he said.
"Charge you with blundering ?" she echoed; and the inflection of the pronoun might have flattered him had he not reflected that it was impossible she could have understood his allusion.

And now she bethought her that she had not thanked him--and the debt was a heavy one.

He had come to her aid in an hour when hope seemed dead.