"from her purse. "We have to follow that car!" "But not too close," Nancy replied. "We'd make them suspicious." The girls waited three minutes before backing out into the main highway and then turning into the adjacent road. Though the automobile ahead had disappeared, tire prints were plainly visible. The road twisted through a stretch of wood-land. When finally the tire prints turned off into a heavily wooded narrow lane, Nancy was sure they were not far from the cabin. She parked among some trees and they went forward on foot. "There it is!" whispered Nancy, recognizing the chimney. "Bess, I want you to take my car, drive to River Heights, and look up the name of the owner of the car we just saw. Here's the license number. "After you've been to the Motor Vehicle Bureau, please phone Mrs. Putney's house. If she answers, we'll know it wasn't she we saw in the car. Then get hold of Dad or Ned, and bring one of them here as fast as you can. We may need help. Got it straight?" "I--I--g-guess so," Bess answered. "Hurry back! No telling what may happen while you're away." The two watched as Nancy's car rounded a bend and was lost to view. Then Nancy and George walked swiftly through the woods toward the cabin. Approaching the building, Nancy and George were amazed to find that no car was parked on the road in front. "How do you figure it?" George whispered as the girls crouched behind bushes. "We certainly saw tire marks leading into this road!" "Yes, but the car that passed may have gone on without stopping. Possibly the driver saw us and changed her plans. Wait here, and watch the cabin while I check the tire marks out at the"