that the line may bear the weight!" said Roger to himself, as
he took the apparatus from Harry.

Then he leant forward and extended his arm so far that any person
standing below would be able to see it in the moonlight, although the
person himself in the courtyard would be hidden in the shadow cast by
the high walls of the prison. He allowed his hand to remain for a few
moments, shining white in the moonlight, in order to signify to the man
below that he was in readiness, and was prepared to let down the line.
As if in answer, another small pebble came clattering against the wall
just below the grating, and Roger's heart stood still for a moment with
deadly fear, lest any unwelcome listener might be about.

But there was no sign of such being the case, and the lad lowered
carefully away until he felt the knife touch the ground.

A few seconds later he felt a gentle vibration of the silk, as the man
below fastened something to it, and then came three light pulls on the
line. Roger rightly took this for a signal to haul up, and immediately
did so.

He hauled away with the utmost care, for he knew that his very life
depended upon it, and when he had hauled in his own line he found
attached to it a cord of stouter proportions, and capable of sustaining
a very much heavier burden.

To be on the safe side, he at once secured the end of this second line
to a bar of the grating, in case it should slip through his fingers, and
handed the silken line to Harry, asking him to re-coil it for use again
should it be required. Then he gave three light tugs to the line at his
end, as a signal that he was ready for the next operation. Immediately
he had done so, the gentle movement of the line began again, and was
followed directly afterward by the three signal pulls, but stronger ones
this time. Up came the cord, and this time it was evident that there
was something quite heavy at the other end. Roger pulled up quickly,
and presently a dark bundle made its appearance at the window. He
grasped this carefully and handed it to Harry, who placed it upon the
cell table.

Then the cord was sent down once more. There was a longer pause this
time, and Roger was on the point of pulling up the cord, thinking that
their unknown friend had finished his part of the business, when the
three pulls came again, and Roger once more hoisted away on the line.

It was not so heavy on this occasion, and on taking it in through the
window he f