There was also a bit of white paper on which was writing.

By holding this close to the lamp-lighted grating.

Ridge read: "You have only till daylight.

Saw out a bar and squeeze through.
Friends will await you outside.

Destroy this." There was no signature.
"What friends can I have in this place ?" thought the young trooper, as he nervously chewed the bit of paper to a pulp.