"Know what, Roger? Do you mean—"
The visi-screen answered for him. Out there high up in the sky there was a single bright flash—and then a thousand flashes that blended into one blinding one. A roar from the receiver rose to deafening pitch, stopped abruptly.
"Shh," said Roger gently. "Watch." He drew her to the screen.
"Shattered the diaphragm of the transmitter," said Roger quietly. "That was trionite in action, Ann, it's all over. Your father—won!"
"But the formula! He destroyed it!"
Roger Kay put his other arm about her, smiled down. "That was why I was sent here, Ann. To eliminate possible hitches."
"But how—"