CHAPTER XX

That Night After all their precautions, the sailing away of the airplane without them was a bitter pill to swallow. The Hardy boys had been so confident that the men would remain in this place until the night of the twenty-eighth that this early morning flight took them completely by surprise. “We’ve lost them now,” said Frank. “We don’t know where they’re going or where this hold-up, or whatever it is, is going to take place. And we don’t even know where we are ourselves.” “It’s tough luck. After all the trouble w…