"He's harmless enough, and his mind isn't permanently astray, if only he can have prompt and good care.
But he's inclined to get away by himself and ponder over his inventions.

If he leads a too solitary life long enough he may be past the possibility of a cure one of these days.

That is why Colonel Garwood is so anxious to find his son, and offers such a handsome reward for information." "Some one missing ?" asked Dick in a low voice.
"Yes," nodded a man in the crowd.

"A crazy inventor is lost, or he's loose, at any rate, and his old father is trying to find him.

There is a reward of twenty-five hundred dollars for the lucky fellow who finds this inventor with the monkey wrenches in his brain." "What does the man look like ?" asked Dick.
The tall man in black overheard the question and wheeled quickly.
"Amos Garwood is the missing man," said the tall man.