"Tom Swift here!... Yes?... Thank heavens! I guess we can all be grateful, Dr. Miles!"

"Providence protected us, I'm sure, Tom," the seismologist replied at the other end of the line. "But in this instance it worked through Tom Swift's Quakelizors! The Bona Fide plant and the surrounding area never even felt the tremor—your quake deflectors worked perfectly!"

There was no need to tell the others. Tom's words on the telephone and the grin on his face told the story. A spontaneous volley of cheers echoed through the cave as he hung up. Then the crew crowded around to slap Tom on the back and shake his hand.

"I hope the whole country learns what you've done, Tom," Mike Burrows said. "If it doesn't, I'll be the first to spread the word as soon as the secrecy lid's taken off!"

"Shucks, I knew all along Tom's contraption would do the trick!" Chow boasted, glowing with pride over his young boss's achievement.

Tom could only smile happily. "Guess we can go home now," he said to Bud and Chow.

They were preparing to leave when another flash from Washington came over the radiotelephone. A ship's captain, five hundred miles out on the Pacific, had just reported sighting a great waterspout, accompanied by considerable wave turbulence.

"It could have been the spot where the enemy shock waves and our deflector waves met and damped out," Tom commented.

"Dr. Miles thinks so, too," the caller said.

Soon the sleek Swift jet was arrowing back across the continent. En route, Tom radioed word of his latest triumph to Mr. Swift. As always, he used the automatic scramblers to make sure any enemy eavesdroppers would pick up only static.