“With Rothschild’s, I hope.”

“No, no, Brown; you take too material a view,” cried the inventor, raising his gleaming eyes from the machine to his companion. “Our fortunes are a mere detail. Money is a thing which every heavy-witted plutocrat in the country shares with us. My hopes rise to something higher than that. Our true reward will come in the gratitude and goodwill of the human race.”

Brown shrugged his shoulders. “You may have my share of that,” he said. “I am a practical man. We must test our invention.”

“Where can we do it?”

“That is what I wanted to speak about. It must be absolutely secret. If we had private grounds of our own it would be an easy matter, but there is no privacy in London.”

“We must take it into the country.”

“I have a suggestion to offer,” said Brown. “My brother has a place in Sussex on the high land near Beachy Head. There is, I remember, a large and lofty barn near the house. Will is in Scotland, but the key is always at my disposal. Why not take the machine down tomorrow and test it in the barn?”

“Nothing could be better.”

“There is a train to Eastbourne at one.”

“I shall be at the station.”