“All right, laugh,” Penny retorted grimly. “You think my detective efforts are a joke anyway.”
“No, I don’t, Penny. But I will say I doubt you’ll have success tracing a hidden radio station. After all, it’s a problem that has the State authorities baffled. Not to mention Uncle Sam’s Army.”
The girls stepped from the cave out into the brilliant sunshine. Gazing toward the sea, they were amazed to see how high the tide had risen. Giant waves were washing very close to the Parker automobile left on the beach.
“Ye fishes!” Penny exclaimed in horror. “I forgot all about the car!”
“And the tide’s coming in fast!”
“The Point will be cut off in a few more minutes!” Penny added, recalling Mr. Emory’s warning. “We’ll have to travel, and travel fast!”
Scrambling down from the rocks, the girls plunged through the dunes to the beach. A wind was blowing and the sea had an angry look.
“If just one wave strikes the car, the wheels will sink in the sand, and then we’ll be in it!” Penny cried.
With increasing alarm she noted that sand was damp within a foot of the rear wheels. And as she jerked open the car door, a greedy wave nipped again at the rubber.
“We’ll soon be out of here,” Louise said encouragingly.