His look frightened, almost terrified her.

She felt like a trapped creature that lies quaking in the grass, listening to the coming footsteps of its captor.
In a vague way Jerry was aware of her inquietude, and when they rose at length to leave their secluded corner, he turned and spoke with a certain blunt chivalry that did him credit.
"I say, Nan, if things get unbearable, you'll promise to let me know?
I'll do anything to help you, you know--anything under the sun." And Nan squeezed his arm tightly in acknowledgment, though she made no verbal answer.
Amid a crowd of departing dancers they came face to face with Piet.

He was standing in an attitude of immense patience near the door.

Very quietly he addressed her.
"Colonel Everard and your sisters have gone.

The motor is waiting to take you when you are ready." She started back sharply.