"All is well, Franks!"
"Got it?"
"Yes! Make ready."
There was a stir outside as several of the bandits hastened down the defile to meet De Boer. And the tread of others, inside the flyer at their posts, preparing for hasty departure.
Hans snapped off the audiphone and mirror. He bent over his control panel. "All is well, Gutierrez. In a moment we start."
Through the observatory window I saw the line of De Boer's men coming: Abruptly Hans gave a cry. "Look!"
glow was in the room. A faint aura of light. And our disconnected instruments were crackling, murmuring with interference. Eavesdropping waves were here! Hans realised it: so did I.
But there was no need for theory. From outside came shouts.