"Those men," said the king in a low voice, while he pointed out the other two, "are my avowed enemies.  This is proof that your wonderful spectacles indicated my minister's character with perfect truth.  I am grateful to you for thus putting me upon my guard, for I have trusted the man fully."
"Oh, don't mention it," replied the boy, lightly; "I'm glad to have been of service to you.  But it's time for me to go."
"I hope you will favor me with another interview," said the king, "for I am much interested in your electrical inventions.  I will instruct my guards to admit you at any time, so you will not be obliged to fight your way in."
"All right.  But it really doesn't matter," answered Rob.  "It's no trouble at all to knock 'em over."
Then he remembered his manners and bowed low before the king, who seemed to him "a fine fellow and not a bit stuck up."  And then he walked calmly from the palace.
The people in the outer room stared at him wonderingly and the officer of the guard saluted the boy respectfully.  But Rob only smiled in an amused way as he marched past them with his hands thrust deep into his trousers' pockets and his straw hat tipped jauntily upon the back of his head.