"Might I ask," interrupted Kennedy, "what that curious greenish or
bluish light from the tube is composed of?"

Prescott eyed him keenly for an instant through his thick glasses.
Craig had shifted his gaze from the bit of mineral in his own hand,
but was not looking at the light. He seemed to be indifferently
contemplating Prescott's hand as it rested on the switch.

"That, sir," replied Prescott slowly, "is an emanation due to this new
force, protodyne, which I use. It is a manifestation of energy, sir,
that may run changes not only through the whole gamut of the elements,
but is capable of transforming the ether itself into matter, matter
into life, and life into mind. It is the outward sign of the unity of
nature, the--"

"The means by which you secure the curious telepagrams I have heard
of?" inquired Kennedy eagerly.

Prescott looked at him sharply, and for a moment I thought his face
seemed to change from a livid white to an apoplectic red, although it
may have been only the play of the weird light. When he spoke it was
with no show of even suppressed surprise.

"Yes," he answered calmly. "I see that you have heard something of
them. I had a curious case a few days ago. I had hoped to interest a
certain capitalist of high standing in this city. I had showed him
just what I have showed you, and I think he was impressed by it. Then
I thought to clinch the matter by a telepagram, but for some reason
or other I failed to consult the forces I control as to the wisdom