But she was afraid. And so was Steve. And her father, too. Everyone in the room was afraid because no one could say whether the tornado could be destroyed before it hit the city or not.

“Eight—seven—six—” droned the unhurried voice of the operator.

The Shannons hardly dared breathe for fear of disturbing the man at the machine. Steve felt Sue’s body quivering next to him. It seemed as if the seconds were dragging on endlessly.

“Three—two—one—FIRE!”

Steve felt nothing but he knew the tornado bomb was on its way, speeding hundreds of miles a second Earthward.

For long, awfully long, moments after the operator had said, “Fire!” the Shannons waited for him to speak again. He kept looking calmly through the eyepiece of the machine as though just studying the stars. Then at last they saw a smile spread over his face and he said to everyone in the room, “It’s a hit! Little Rock is safe!”

The tornado bomb was on its way, speeding hundreds of miles a second Earthward

Sue and Steve whooped as if it were Christmas morning. Where a minute before they had been greatly worried, now they were happy as they never believed they could be.

“Whew!” Mr. Shannon sighed. “I’m afraid I’ve had enough excitement to last me a lifetime!”