"Wait!" exclaimed Larry. "I"m trying to figure this out. It seems to hang together. It almost does, but not quite. When did Tugh vanish from your world?"
"To our consciousness," Tina answered, "about three hours ago. Perhaps a little longer than that."
"But look here," Larry protested: "according to my story and that of Mary Atwood, Tugh lived in 1935 and in 1777 for three years."
Confusing? But in a moment Larry understood it. Tugh could have taken the cage, gone to 1777 and to 1935, alternated between them for what was to him, and to those Time-worlds, three years--then have returned to 2930 _on the same day of his departure_. He would have lived these three years; grown that much older; but to the Time-world of 2930 neither he nor the cage would have been missed.
"That," said Tina, "is what doubtless he did. The cage is traveling again. But you, Larry, tell us only Migul is in it."
"I couldn"t say that of my own knowledge," said Larry. "Mary Atwood said so. It held only the mechanism you call Migul. And now Migul has with him Mary and my friend George Rankin. We must reach them."
"We want that quite as much as you do," said Harl. "And to find Tugh.
If he is a friend we must save him; if a traitor--punish him."
Larry began, "But can you get to the other cage?"
"Only if it stops," said Tina. "_When_ it stops, I should say."
"Come here," said Harl. "I will show you."
Larry crossed the glowing room. He had forgotten its aspect--the ghostly unreality around him. He too--his body, like Harl"s and Tina"s--was of the same wraith-like substance.... Then, suddenly, Larry"s viewpoint shifted. The room and its occupants were real and tangible. And outside the glowing bars--everything out there was the unreality.
"Here," said Harl. "I will show you. It is not visible yet."
Each of the cages was equipped with an intricate device, strange of name, which Larry and I have since termed a Time-telespectroscope.
Larry saw it now as a small metal box, with tuning vibration dials, batteries, coils, a series of tiny prisms and an image-mirror--the whole surmounted by what appeared the barrel of a small telescope.
Harl had it leveled and was gazing through it.[1]
[Footnote 1: The workings of the Time-telespectroscope involve all the intricate postulates and mathematical formulae of Time-traveling itself. As a matter of practicality, however, the results obtained are simple of understanding. The etheric vibratory rate of the vehicles while traveling through Time was constantly changing. Through the telespectroscope one cage was visible to the other across the five hundred feet of intervening s.p.a.ce when they approached a simultaneous Time; when they, so to speak, were tuned in unison.
Thus, Harl explained, the other cage would show as a ghost, the faintest of wraiths, over a Time-distance of some five or ten years.
And the closer in Time they approached it, the more solid it would appear.]
The enemy cage was not visible, now. But Harl and Tina had glimpsed it on several occasions. What vast realms Time opens within a single small segment of s.p.a.ce! The larger vehicle seemed speeding back and forth. A dash into the year 1777! as Larry learned from Mary Atwood.
And there had been several evidences of the cage halting in 1935.
Larry"s account explained two such pauses. But the others? Those others, which brought to the City of New York such amazing disaster?
We did not learn of then until much later. But Alten lived through them, and presently I shall reconstruct them from his account.
The larger cage was difficult to trace in its sweep along the corridors of Time. Never once had Tina and Harl been able to stop simultaneously with it, for a year has so many separate days and hours. The nearest they came was the halt in the night of June 8-9, when they encountered Larry, and, startled, seized him and moved on again.
Harl continued to gaze through the eyepiece of the detecting instrument. But nothing showed, and the mirror-grid on the table was dark.
"But--which way are we going?" Larry stammered.
"Back," said Tina. "The retrograde.... Wait! Do not do that!"
Larry had turned toward where the bars, less luminous, showed a dark rectangle like a window. The desire swept him to gaze out at the shining, changing scene.
But Tina checked him. "Do not do that! Not yet! It is too great a shock in the retrograde. It was to me."
"But where are we?"
In answer she gestured toward a series of tiny dials on the table edge. There were at least two score of them, laid in a triple bank.
Dials to record the pa.s.sing minutes, hours, days; the years, the centuries! Larry stared at the small whirring pointers. Some were a blur of swift whirling movement--the hours and days. Tina showed Larry how to read them. The cage was pa.s.sing through the year 1880. In a few moments of Larry"s consciousness it was 1799. Then 1793. The infant American nation was here now. But with the cage retrograding, soon they would be in the Revolutionary War.
Tina said. "The other cage may go back to 1777, if Tugh meant ill to Mary Atwood, or wants revenge upon her father, at you said. We shall see."
They had reached 1790 when Harl gave a low e.j.a.c.u.l.a.t.i.o.n.
"You see it?" Tina murmured.
"Yes. Very faintly."
Larry bent tensely forward. "Will it show on the mirror?"
"Yes; presently. We are about ten years from it. If we get closer, the mirror will show it."
But the mirror held dark. No--now it was glowing a trifle. A vague luminosity.
Tina moved toward the instrument controls nearby. "Watch closely, Harl. I will slow us down."
It seemed to Larry that the humming with which everything around him was endowed, now began descending in pitch. And his head suddenly was unsteady. A singular, wild, queer feeling was within him. An unrest. A tugging torment of every tiny cell of his body.
Tina said. "Hold steady, Larry, for when we stop."
"Will it shock me?"
"Yes--at first. But the shock will not harm you: it is nearly all mental."
The mirror held an image now--the other cage. Larry saw, on the six-inch square mirror surface, a crawling, melting scene of movement.
And in the midst of it, the image of the other cage, faint and spectral. In all the mirrored movement, only the apparition of the cage was still. And this marked it; made it visible.
Over an interval, while Larry stared, the ghostly image grew plainer.
They were approaching its Time-factor!
"It is stopping," Harl murmured. Larry was aware that he had left the eyepiece and joined Tina at the controls.
"Tina, let us try to get it right this time."
"Yes."