The caretaker was as good as his word, and before ten o'clock the cots and bedding were in place, also an electric heater and an electric plate for cooking had been moved into the apartment.
Not considering it advisable to go out for supper, Canfield had also brought in provisions in the shape of bacon, potatoes, eggs, bread, butter, coffee, and various grades of canned goods, so the boys had made a hearty meal and had plenty left for breakfast. While cooking they had covered the one window with a heavy piece of canvas.
"Now you're all, tight and snug for the night," the caretaker smiled, as he turned back from the door and glanced over the rather cozy-looking room. "If I'm about here during the night, I'll look in upon you again."
Canfield stepped out and closed the door behind him. Then he came back and looked in again with a big smile on his face.
"Do you boys know anything about mines?" he asked.
"Not, a thing!" replied Tommy.
"Then don't you go climbing down the ladders and wandering around in the gangways tonight," the caretaker warned.
"Say, there's an idea!" Tommy said to Sandy, with a wink, as Canfield went out. "How do you think one of these mammoth coal mines looks, any way?"
"Cut that out, boys!" exclaimed Will. "If I catch one of you attempting the ladders tonight, I'll tie you up!"
"Who said anything about going down the ladders tonight?" demanded
Tommy.