As he rushed from the room, Tom and Mr. Damon had a glimpse of a face at one of the low library windows—a face that had an evil look. It disappeared as Mr. Titus ran from the room.
Chapter IV
Tom's Experiments
"Bless my looking glass, Tom, what does that mean?" exclaimed Mr. Damon. "That face!"
"I don't know," answered the young inventor. "But the sight of some one looking in here seemed to disturb Mr. Titus. We must follow him."
"Perhaps he saw your giant Koku looking in," suggested the odd, little man who blessed everything he could think of. "The sight of his face, to any one not knowing him, Tom, would be enough to cause fright."
"It wasn't Koku who looked in the window," said Tom, decidedly. "It was some stranger. Come on."
The young inventor and Mr. Damon hurried out after the tunnel contractor, who was running down the road that led in front of the Swift homestead.
"He's chasing some one, Tom," called Mr. Damon.