working this way. There will soon be a great subterranean upheaval! Listen for yourself."
Tom cast himself down on the grass. Placing his ear close to the ground he did hear a series of dull thuds. He arose, not a little alarmed. There had never been any earthquakes in Shopton, yet he had great respect for Mr. Parker's scientific attainments.
Just then Eradicate Sampson came along. He saw Tom and Mr. Parker lying flat on the ground, and surprise showed on his honest, black face.
"Fo' de land sakes!" cried Eradicate. "What am de mattah now, Massa Tom?"
"Earthquake coming," answered Tom, briefly. "Better get away from the buildings, Rad. They might fall!" Tom's face showed the alarm he felt. What would happen to all of his valuable machines—to the Red Cloud?
"Earthquake?" murmured Eradicate, and he, too, cast himself down to listen. A moment later he arose with a laugh.
"What's the matter?" cried Tom.
"Why, dat ain't no earthquake!" declared the colored man.
"No. Then perhaps you know what it is," said Mr. Parker, somewhat sharply.
"Course I knows what it am," answered
