"Detector?" he asked dully.
"They're assembling the space-resonant elements on Earth One!"
The bell broke into an insistent clamoring. Ed picked himself from the floor and looked at the gear. The cascaded amplifiers, incapable of detecting the presence of subcritical masses on Earth One, had sufficient gain to trigger the alarm when Earth One's bits of space resonant elements were collected into critical mass.
Bronson spun the dials of the viewer.
There before him was the familiar laboratory of his own home and four men standing before his bench, upon which stood the crystalline mass.
"Now!" breathed Ed Bronson.
CHAPTER XVI
A World at Stake
Uncertainly Virginia paused. "Ed," she said.