If we could read the hieroglyphics on the walls, we would be able to write a history of their troubles." "Were they the real thing in cave-dwellers ?" asked Jack, who was not noted for his studious habits, and who depended on his companions for a knowledge of the countries he visited as a member of the Black Bear Patrol.
"Earlier than some of the cave-men," replied Harry.

"I wonder if this water is any good to drink ?" he added, looking longingly at the crystal stream flowing under the round circle of the flashlight.

"Who wants to try it ?" Frank Shaw did not wait to make many tests.

Tormented with thirst, he felt of the water by rubbing it between his thumb and fingers, smelled of it, put it cautiously to his lips, and then, experiencing no bad effects from this contact, took a few drops into his mouth.
"It is fine!" he shouted, then.

"Cold as ice and sweet as sugar! This beats a soda fountain, Jimmie!" "Now, was this tunnel constructed on purpose to reach this spring ?" asked Harry.
The lads examined the walls minutely, but there was no opening from the chamber, save the one by which they had entered.
"This must have been the milk house," laughed Frank, always ready to turn any subject under discussion into a joke.