"We'll keep in touch with you, Joanne," Nancy promised as they said good-bye.

"I have a feeling we'll be seeing a lot more of each other," Joanne called after them. "So please do call me Jo! I'd much prefer it."

"Jo it is!" they agreed merrily. "Good-bye for now."

Nancy and her friends had just started back to River Heights when Nancy checked her gas gauge and decided to stop at a filling station. The girls were idly watching passers-by when suddenly a young woman, walking with mincing steps because of her extremely high heels, attracted Nancy's attention. Nancy gasped in recognition. There was no mistaking the distinctive Oriental features. The clerk in the perfume shop!

Nancy turned to her companions. "Look at that girl who just crossed over. Isn't she the same one who sold you the perfume, Bess?"

"You mean the one who tried not to sell me the perfume, don't you?" Bess joked. "Yes, she's the same girl!"

Their eyes followed the girl up the street. She had not glanced toward them, but had passed the filling station and continued on.

"Now, what can she be doing here?" Nancy wondered. She got out of the car and stood watching the girl, who entered an office building a short distance farther up the street.

"That's funny," Nancy said to her friends, who were peering from the car windows. "I think that's the very place where Jo applied for a position!"

"You don't suppose that perfume girl has two jobs, do you?" George questioned.

"I'd sure like to find out," the young detective answered.

Just then the attendant approached. Nancy paid him and stepped back into the car.

"We must try to follow her," she declared, starting the motor. They pulled up near the office building into which the young woman had disappeared.

"You two wait here and keep watch," Nancy .said. "If I'm not back in a few minutes, you'd better come and see what's going on."