"Thanks, Rooney."
The old night watchman was a jolly fellow, and everybody liked him. He was very fond of Betty, and the young woman always passed a pleasant word with him.
Rooney entered the room where the amber blocks were. The girl walked with her father down the long corridor. She heard Marable's step behind them.
"Wait for me a moment, father," she said.
She went back, smiling at Marable as she passed him, and entered the door, but remained in the portal and called to Rooney, who was down the laboratory.
He came hurrying to her side at her nervous hail.
"What is it, ma'am?" asked Rooney.
"You'll be careful, won't you, Rooney?" she asked in a low voice.
"Oh, yes, ma'am. I'm always careful. Nobody can get in to harm anything while Rooney's about."
"I don't mean that. I want you to be careful yourself, when you're in this room to-night."