CHAPTER XV.
A MIDNIGHT MYSTERY.
It did not take very deep reasoning upon the part of the young electrician to determine that Felter and Nolan were out for no good purpose. Had their errand been a legitimate one they would, doubtless, have chosen a more fitting time. Besides, what Nolan had said about the watchman being off had given Franklin a clew as to where they were bound.
"They are going to the factory," he thought. "And it is nearly eleven o'clock! What can be in the wind?"
Felter and Nolan were floundering through the snow drift, and to avoid being seen by them the young electrician stepped toward the nearest building and crouched down behind a big box used for coal. A minute later the two factory hands passed him and continued on their way toward the fan works.
Franklin did not hesitate long in making up his mind as to what to do
