As they rode up Tom chanced to glance towards a side window and was surprised to catch sight of a man looking curiously at them.

As soon as he saw that he was discovered the man stepped out of sight.
"Well, I never!" gasped Tom.

"Did you see him ?" "See who ?" asked his brothers.
"That man at the window of the mill! Unless I am greatly mistaken it was Josiah Crabtree!".