Page:Dave Porter on Cave Island.djvu/99

Rh !" and the druggist turned down one road and Dave and Roger took the other.

Inside of five minutes more our hero and his chum were at the entrance to the Wadsworth mansion. Just as they were mounting the steps, and Dave was feeling in his pocket for his key, a strange rumble reached their ears.

"What was that?" asked the senator's son.

"I don't know," returned Dave, in some alarm. "It sounded to me as if it came from the direction of the jewelry works!"