"It'll sort of spoil the effect," said Don. "But we're not here for effect."

"What effect?"

"That explosive will be as useless as a slab of soap," said Don. "Explosive depends for its action upon velocity—brother, there ain't no explosive built that will propagate at the velocity of our torpedo against Murdoch."

"I know," said Franks smiling.

"Shall I yell 'Bombs away' in a dramatic voice?" asked Freddie Thomas.

"Are they?"

"Yup."

"Then yell," grinned Walt. "Look, Don, this should be pretty. Let's hike to the star-camera above and watch. We can use the double-telescope finder and take pix, too."

"It won't be long," said Channing grimly. "And we'll be safe, since the interferers will keep Murdoch's gadget so busy he won't have time to worry us. Let's go."