Read "The Secret of the Old Mill" by Franklin W. Dixon online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
The Hardy boys always said that the few seconds in which they stood in the shadow of the willow tree with the suspicious Markel almost within arm's length of them, not knowing whether they had been discovered or not, were the longest seconds they had ever known.
It seemed hours before they finally heard Markel give a grunt of satisfaction and trudge away in the opposite direction.