"It may be—since they were together when the girls saw them," returned Dick.
"We ought to have armed ourselves," put in Tom. The boys had no weapons of any kind.
"Here are some old barrel staves," said Tom. "They are better than nothing." And he picked up a stave and his brothers followed suit.
With caution the three Rover boys advanced through the old mill, which, because of the closed doors and dirty windows, was a gloomy place in spite of the brightness of the day outside. All listened intently, but not a sound reached their ears, excepting Mr. Marley's voice as he talked to the restless horses.
"Supposing I call to him?" suggested Dick.
"It can't do any harm," answered Sam.
"Hello, Mr. Crabtree!" sang out Tom, without waiting for his brother. "Where are you? Why don't you show yourself?"
All waited after this call. But no reply came back, and then Dick and Sam called.
"He's a bit bashful," was Tom's grinning comment. "Wants to be hauled out by the coattails, I guess. Come on, we'll soon locate him," and he started forward.
"Be careful, Tom!" warned his elder brother. "He may set a trap for you! You know he and Sobber are not to be trusted."
