Seconds later, the _Relay Girl_ hurtled through the sky three thousand miles to one side of the blast. The driven gases caught the _Girl_ and stove in the upper observation dome like an eggshell. The _Relay Girl_ strained at her girders, and sprung leaks all through the rigid ship, and after rescuing Don Channing and Walt Franks from the wreckage of the observation dome, the men spent their time welding cracks until the _Relay Girl_ landed. It was Walt who put his finger on the trouble. "That was period for Murdoch," he said. "But Don, the stooge still runs loose. We're going to be forced to take over Mark Kingman before we're a foot taller. He includes Terran Electric, you know. That's where Murdoch got his machine work done." "Without Murdoch, Kingman is fairly harmless," said Don, objecting. "We'll have no more trouble from him." "You're a sucker, Don. Kingman will still be after your scalp. You mark my words." "Well, what are you going to do about it?" "Nothing for the present. I've got some unfinished business to attend to at Lincoln Head. Mind?" THE END.