brought the beam on his own residence again, when not far above it.
Suddenly there arose a weird cry. Tom and Ned knew at once that it was Eradicate.
"A comet! A comet!" yelled the colored man. "De end ob de world am comin'! Run, chillens, run! Beware ob de comet!"
"Eradicated afraid!" cried Tom with a laugh.
"Oh good mistah comet! Doan't take me!" went on the colored man. "I ain't neber done nuffin', an' mah mule Boomerang ain't needer. But ef yo' has t' take somebody, take Boomerang!"
"Keep quiet, Rad! It's all right!" cried Tom. But the colored man continued to shout in fear.
Then, as the two boys looked on, and as the airship came nearer to the earth, Ned, who was looking down amid the great illumination, called to Tom:
"Look at Koku!"
Tom glanced over, and saw his giant servant; with fear depicted on his face, running away as fast as he could. Evidently Eradicate's warning had frightened him.
"Say, he can run!" cried Ned. "Look at him leg it!"
"Yes, and he may run away, never to come back," exclaimed Tom. "I don't want to lose
