“Look, you fellows!”
Ned sprang forward, and Jerry, at the wheel, leaned to one side to look.
Down below, standing on a big rock, was the solitary figure of a man, and he seemed trying to signal to them.
[CHAPTER XXVIII]
THE SECRET PASSAGE
“What shall we do?” asked Bob, greatly excited.
“Go down to him, of course,” answered Ned. “He may have some information for us.”
“I’m not so sure about that,” put in Jerry.
“Sure of what?” came quickly from Ned.