Captain Carter interjected, “I want you and Dean to be on your guard. Once on the Planetara it is difficult for us to talk openly, but be watchful. I will arrange for us to be doubly armed.”
Vague, perturbing words! Halsey said, “They tell me George Prince is listed for the voyage. I am suggesting, Haljan, that you keep your eye especially upon him. Your duties on the Planetara leave you comparatively free, don’t they?”
“Yes,” I agreed. With the first and second officers on duty, and the captain aboard, my routine was more or less that of an understudy.
I said, “George Prince! Who is he?”
“A mechanical engineer,” said Halsey. “An under-official of the Earth Federated Radium Corporation. But he associates with bad companions–particularly Martians.”
I had never heard of this George Prince, though I was familiar with the Federated Radium Corporation, of course. A semi-government trust, which controlled virtually the entire Earth supply of radium.
“He was in the Automotive Department,” Carter put in. “You’ve heard of the Federated Radium Motor?”
We had, of course. A recent Earth invention which promised to revolutionize the automotive industry. An engine of a new type, using radium as its fuel.
Snap demanded, “What in the stars has this got to do with Johnny Grantline?”
“Much,” said Halsey quietly, “or perhaps nothing. But George Prince some years ago mixed in rather unethical transactions. We had him in custody once. He is known now as unusually friendly with several Martians in New York of bad reputation.”
“Well–” began Snap.
“What you don’t know,” Halsey went on quietly, “is that Grantline expects to find radium on the Moon.”
We gasped.
“Exactly,” said Halsey. “The ill-fated Ballon Expedition thought they had found it on the Moon some years ago. A new type of ore, as rich in radium as our gold-bearing sands are rich in gold. Ballon’s first samples gave uranium atoms with a fair representation of ionium and thorium. A richly radio-active ore. A lode of the pure radium is there somewhere, without doubt.”
He added vehemently, “Do you understand now why we should be suspicious of this George Prince? He has a criminal record. He has a thorough technical knowledge of radium ores. He associates with Martians of bad reputation. A large Martian Company has recently developed a radium engine to compete with our Earth motor. You know that? You know that there is very little radium available on Mars, and our government will not allow our own radium supply to be exported. That Martian Company needs radium. It will do anything to get radium. What do you suppose it would pay for a few tons of really rich radio-active ore–such as Grantline may have found on the Moon?”
“But,” I objected, “that is a reputable Martian company. It’s backed by the government of the Martian Union. The government of Mars would not dare–”
“Of course not!” Captain Carter exclaimed sardonically. “Not openly! But if Martian brigands had a supply of radium–I don’t imagine where it came from would make much difference. That Martian Company would buy it.”
Halsey added, “And George Prince, my agents inform me, seems to know that Grantline is on the Moon. Put it all together, lads. Little sparks show the hidden current.
“More than that: George Prince knows that we have arranged to have the Planetara stop at the Moon and bring back Grantline’s radium-ore. This is your last voyage this year. You’ll hear from Grantline this time, we’re convinced. He’ll probably give you the signal as you pass the Moon on your way out. Coming back, you’ll stop at the Moon and transport whatever radium-ore Grantline has ready. The Grantline Flyer is too small for ore transportation.”
Halsey’s voice turned grimly sarcastic. “Doesn’t it seem queer that George Prince and a few of his Martian friends happen to be listed as passengers for this voyage?”
In the silence that followed, Snap and I regarded each other. Halsey added abruptly,
“We had George Prince typed that time we arrested him four years ago. I’ll show him to you.”
He snapped open an alcove, and said to his waiting attendant, “Get me the type of George Prince.”
The disc in a moment came through the pneumatic. Halsey, smiling wryly, adjusted it.
“A nice looking fellow. Nicely spoken. Though at the time we made this he was somewhat annoyed, naturally. He is older now. Twenty-nine, to be exact. Here he is.”
The image glowed on the grids before us. His name, George Prince, in letters illumined upon his forehead, showed for a moment and then faded. He stood smiling sourly before us as he repeated the official formula:
“My name is George Prince. I was born in Great-New York City twenty-five years ago.”
I gazed at this life-size, moving image of George Prince. He stood somber in the black detention uniform. A dark, almost a girlishly handsome fellow, well below medium height–the rod beside him showed five feet four inches. Slim and slight. Long, wavy black hair, falling about his ears. A pale, clean-cut, really handsome face, almost beardless. I regarded it closely. A face that would have been femininely beautiful without its masculine touch of heavy black brows and firmly set jaw. His voice as he spoke was low and soft; but at the end, with the concluding words, “I am innocent!” it flashed into strong masculinity. His eyes, shaded with long, girlish black lashes, by chance met mine. “I am innocent.” His curving sensuous lips drew down into a grim sneer…
The type faded at its end. Halsey replaced the disc in its box and waved the attendant away. “Thank you.”
He turned back to Snap and me. “Well, there he is. We have nothing tangible against him now. But I’ll say this: he’s a clever fellow, one to be afraid of. I would not blare it from the newscasters’ microphone, but if he is hatching any plot, he has been too clever for my agents.”
We talked for another half-hour, and then Captain Carter dismissed us. We left Halsey’s office with Carter’s final words ringing in our ears. “Whatever comes, lads, remember I trust you…”
Snap and I decided to walk a portion of the way back to the ship. It was barely more than a mile through this subterranean corridor to where we could get the vertical lift direct to the landing stage.
We started off on the lower level. Once outside the insulation of Halsey’s office we did not dare talk of this thing. Not only electrical ears, but every possible eavesdropping device might be upon us. The corridor was two hundred feet or more below the ground level. At this hour of the night this business section was comparatively deserted. The through tube sounded over our heads with the passing of its occasional trains. The ventilators buzzed and whirred. At the cross intersections, the traffic directors dozed at their posts. It was hot and sticky down here, and gloomy with the daylight globes extinguished, and only the night lights to give a dim illumination. The stores and office arcades were all closed and deserted; only an occasional night-light burning behind their windows.
Our footfalls echoed on the metal grids as we hurried along.
“Nice evening,” said Snap awkwardly.
“Yes,” I said, “isn’t it?”
I felt oppressed. As though prying eyes and ears were here. We walked for a time in silence, each of us busy with memory of what had transpired in Halsey’s office.
Suddenly Snap gripped me. “What’s that?”
“Where?” I whispered.
We stopped at a corner. An entryway was here. Snap pulled me into it. I could feel him quivering with excitement.
“What is it?” I demanded in a whisper.
“We’re being followed. Did you hear anything?”
“No!” Yet I thought now