Anita spoke in a careful, throaty drawl. "The Gamma rays came plain enough when we pa.s.sed here on the way out."
"You should know," grinned Miko. "An expert eavesdropper, Prince--I will say that for you. Come Dean, try something else. By G.o.d, if Grantline does not signal us, I will be likely to blame you--my patience is shortening. Shall we go closer, Haljan?"
"I don"t think it would help," I said.
He nodded. "Perhaps not. Are we checked?"
"Yes." We were poised, very nearly motionless. "If you wish an advance, I can ring it. But we need a surface destination now."
"True, Haljan." He stood thinking. "Would a zed-ray penetrate those crater-cliffs? Tycho, for instance, at this angle?"[B]
"It might," Snap agreed. "You think he may be on the Northern inner side of Tycho?"
"He may be anywhere," said Miko shortly.
"If you think that," Snap persisted, "suppose we swing the _Planetara_ over the South Pole. Tycho, viewed from there--"
"And take another quarter-day of time?" Miko sneered. "Flash on your zed-ray; help him hook it up, Haljan."
[B] An allusion to the use of the zed-ray light for making spectro-photographs of what might be behind obscuring rock ma.s.ses, similar to the old-style X-ray.
I moved to the lens-box of the spectroheliograph. It seemed that Snap was very strangely reluctant: Was it because he knew that the Grantline camp lay concealed on the north inner wall of Tycho"s giant ring? I thought so. But Snap flashed a queer look at Anita. She did not see it, but I did. And I could not understand it.
My accursed, witless incapacity! If only I had taken warning!
"Here," commanded Miko. "A score of "graphs with the zed-ray. I tell you I will comb this surface if we have to stay here until our ship comes from Ferrok-Shahn to join us!"
The Martian brigands were coming. Miko"s signals had been answered. In ten days the other brigand ship, adequately manned and armed, would be here.
Snap helped me connect the zed-ray. He did not dare even to whisper to me, with Moa hovering always so close. And for all Miko"s sardonic smiling, we knew that he would tolerate nothing from us now. He was fully armed, and so was Moa.
I recall that Snap several times tried to touch me significantly. Oh, if only I had taken warning!
We finished our connecting. The dull gray point of zed-ray gleamed through the prisms, to mingle with the moonlight entering the main lens.
I stood with the shutter trip.
"The same interval, Snap?"
"Yes."
Beside me, I was aware of a faint reflection of the zed-light--a gray Cathedral shaft crossing the helio-room and falling upon the opposite wall. An unreality there, as the zed-light faintly strove to penetrate the metal room-side.
I said, "Shall I make the exposure?"
Snap nodded. But that "graph was never made. An exclamation from Moa made us all turn. The Gamma mirrors were quivering! Grantline had picked our signals! With what undoubtedly was an intensified receiving equipment which Snap had not thought Grantline able to use, he had caught our faint zed-rays, which Snap was sending only to deceive Miko.
And Grantline had recognized the _Planetara_, and had released his occulting screens surrounding the radium ore. The Gamma rays were here, unmistakable!
And upon their heels came Grantline"s message. Not in the secret system he had arranged with Snap, but unsuspectingly in open code. I could read the swinging mirror, and so could Miko.
And Miko decoded it triumphantly aloud:
"_Surprised but pleased your return. Approach Mid-Northern hemisphere, region of Archimedes, forty thousand toises[C] off nearest Apennine range._"
The message broke off. But even its importance was overshadowed. Miko stood in the center of the helio-room, triumphantly reading the light-indicator. Its beam swung on the scale, which chanced to be almost directly over Anita"s head. I saw Miko"s expression change. A look of surprise, amazement came to him.
"Why--"
He gasped. He stood staring. Almost stupidly staring for an instant. And as I regarded him with fascinated horror, there came upon his heavy gray face a look of dawning comprehension. And I heard Snap"s startled intake of breath. He moved to the spectroheliograph, where the zed-ray connections were still humming.
But with a leap Miko flung him away. "Off with you! Moa, watch him!
Haljan, don"t move!"
[C] About fifty miles.
Again Miko stood staring. Oh dear G.o.d, I saw now that he was staring at Anita!
"Why George Prince! How strange you look!"
Anita did not move. She was stricken with horror: she shrank back against the wall, huddled in her cloak. Miko"s sardonic voice came again:
"How strange you look. Prince!" He took a step forward. He was grim and calm. Horribly calm. Deliberate. Gloating--like a great gray monster in human form toying with a fascinated, imprisoned bird.
"Move just a little Prince. Let the zed-ray light fall more fully."
Anita"s head was bare. That pale, Hamletlike face. Dear G.o.d, the zed-light reflection lay gray and penetrating upon it!
Miko took another step. Peering. Grinning. "How amazing, George Prince!
Why, I can hardly believe it!"
Moa was armed with an electronic cylinder. For all her amazement--what turgid emotions sweeping her I can only guess--she never took her eyes from Snap and me.
"Back! Don"t move, either of you!" She hissed it at us.
Then Miko leaped at Anita like giant gray leopard pouncing.
"Away with that cloak, Prince!"
I stood cold and numbed. And realization came at last. The faint zed-light glow had fallen by chance upon Anita"s face. Penetrated the flesh; exposed, faintly glowing, the bone-line of her jaw. Unmasked the waxen art of Glutz.