go to bed. That will leave you all shipshape in the morning, and you
can then begin your cleaning up as soon as you please."

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,