"The best way to find that out," said Hal, "is to summon your mother."
The girl hesitated no longer. She fairly flew from the room. She reappeared a moment later, followed by an older woman.
"This is Herr Block, Mother," she said.
"Very well, Gladys," replied her mother. "Now, if you will leave us alone, and make sure that we are not disturbed."
"I shall stand guard myself," replied the daughter.
She disappeared into the long hall.
"Now, Herr Block," said Mrs. Schweiring, "you may tell me the nature of your business."
Hal glanced sharply about the room. Then he leaned close.
"I come from the American expeditionary forces in France," he said quietly.
Mrs. Schweiring manifested no surprise.