“That’s a long time to wait,” said Dr. Kirshner gravely. “Can we make what we have hold out?”
“We’ve got to,” Joe’s father returned. “We’ll have to restrain from taking any undue exercise in the heat of the sun.”
“Hum-m!” Dr. Kirshner looked disappointed. “That seems to want to spoil my plans for this afternoon.”
“How’s that?”
“I had intended to do a little exploring up on top of that wall of stone.”
There were exclamations of surprise and anxiety.
“What!” cried Mr. Lewis. “Why, you couldn’t scale that steep cliff with ladders and ropes!”
“Maybe not in some places,” the archæologist smiled. “But I have noticed that there are large fissures that would offer footholds with comparative ease, and I’m going to chance it. There’s no telling what I may bring to light from up on that lofty rock.”
There was a period of silence, finally broken by Bob.