From my stooping position I slipped the letter into her hand, and received another in exchange. The next moment the bundle was on my shoulder, the matron's gaze had returned to me because I was the last hall-man, and I was hastening to catch up with my companions. The letter I had received from the woman I turned over to the fireman, and thence it passed through the hands of the barber, of the convict who had smuggled in my things, and on to the long-timer at the other end.
Often we conveyed letters, the chain of communication of which was so complex that we knew neither sender nor sendee. We were but links in the chain. Somewhere, somehow, a convict would thrust a letter into my hand with the instruction to pass it on to the next link.