“If I could help, I’d be tickled to stay, Dad.”

“There’s nothing you can do, Penny. Just go out there and have a nice vacation.”

Mr. Parker had not intended to go to the office Thursday morning until after Penny’s plane had departed, but at breakfast time a call came from DeWitt, the city editor, urging his presence at once. Before leaving, he gave his daughter her ticket and travelers checks.

“Now I expect to be at the airport to see you off,” he promised. “Until then, good-bye.”

Mr. Parker kissed Penny and hastened away. Later, Louise Sidell came to the house. Soon after ten o’clock the girls took leave of Mrs. Weems, taxiing to the airport.

“I don’t see Dad anywhere,” Penny remarked as the cabman unloaded her luggage. “He’ll probably come dashing up just as the plane takes off.”

The girls entered the waiting room and learned that the plane was “on time.” Curiously, they glanced at the other passengers. Two travelers Penny immediately tagged as business men. But she was rather interested in a plump, over-painted woman whose nervous manner suggested that she might be making her first airplane trip.

While Penny’s luggage was being weighed, two men entered the waiting room. One was a lean, sharp-faced individual suffering from a bad cold. The other, struck Penny as being vaguely familiar. He was a stout man, expensively dressed, and had a surly, condescending way of speaking to his companion.

“Who are those men?” Penny whispered to Louise. “Do you know them?”

Louise shook her head.