“Is this the apparatus with which you experimented at your place?” said the professor.

They were alone, and Frank answered in a low tone full of excitement—

“Yes,” he said; “again and again with perfect success.”

“But you are nervous about it now?”

“Yes, there seems to be so much at stake. Suppose we fail?”

“The best thing Lytton ever wrote, Frank, lad,” said the professor: “‘In the bright Lexicon of youth, there is no such word as fail.’”

“Then you would try?” whispered Frank.

“Try? Yes, and succeed, my lad. Why should you not?”

“I don’t know,” sighed the young man, “unless I dread that anything should go wrong, for Morris’s sake.”

“And he would be sorry for yours. There, work. Everything seems right: battery, wires, vacuum tubes—all looking new and perfect.”