through. Orders have been issued that the telegraph operators are
under no circumstances to give out news about this train. The
wireless is out of commission, too--the operator overcome. The
robbery story has been prepared and given out by this time.
Already reporters are being assigned to follow it up."

I looked over at Kennedy. If orders had been given for such
secrecy by Barry Euston, how could my despatch do any good? It
would be held back by the operators.

Craig quickly slung a wire over those by the side of the track and
seized what I had written, sending furiously.

"What are you doing?" I asked. "You heard what she said."

"One thing you can be certain of," he answered, "that despatch can
never be stolen or tapped by spies."

"Why--what is this?" I asked, pointing to the instrument.

"The invention of Major Squier, of the army," he replied, "by
which any number of messages may be sent at the same time over the
same wire without the slightest conflict. Really it consists in
making wireless electric waves travel along, instead of inside,
the wire. In other words, he had discovered the means of
concentrating the energy of a wireless wave on a given point
instead of letting it riot all over the face of the earth.

"It is the principle of wireless. But in ordinary wireless less
than one-millionth part of the original sending force reaches the