The Shield of Time

The Shield of Time by Poul Anderson Page B

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Authors: Poul Anderson
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Indian to learn about the Hellenes.”
    Everard nodded. In one identity after another, normally separated by timespans of a length to preclude recognition, Benegal Dass spent years adding up into decades among the Bactrians. Each arrival and departure was by the slow, difficult, dangerous means of the era; a hopper, anything that might seem strange, would have destroyed his usefulness and run afoul of the Patrol’s prime directive. He had watched this city grow great, and he would watch it die. The end product of his labors was the story of it, deep and wide-ranging but never seen except by a handful of interested individuals within the corps or up in the far distant future. When he tookfurlough in his native country and century, he must lie to family and friends about what he did for a living. Surely no monk had ever accepted an existence harder, lonelier, or more devoted. I
don’t have that kind of fortitude,
Everard confessed.
    Chandrakumar laughed nervously. “Pardon me,” he said. “I delay matters. Long-windedness, the scholar’s disease. And of course I’m rather in suspense myself, don’t you know. What
is
afoot?” After a moment: “Well?”
    “I’m afraid you won’t like this,” Everard answered heavily. “You’ve been put to a lot of trouble for what’s just a sideshow, if it’s that much. But the main event is so important that every bit of information counts, including negative information.”
    It was hard to see whether Chandrakumar bit his lip. His voice went cold. “Oh, really? What is this main event, may I ask?”
    “Take too long to explain in detail. Not that I know a lot myself. I’m only acting as a liaison with you, a messenger boy. What the Patrol has to prevent is several years uptime. A sort of … equivalent of the Sassanian dynasty … rising and taking over Persia. Soon.”
    The little man stiffened where he sat. “What? Impossible!”
    Everard’s grin was skewed. “That’s what we have to make it. I repeat, I can’t say much. In intelligence work, operatives don’t get told anything they don’t need to know. But, roughly, as I understand it, the plot they’ve uncovered is for King Arsaces of Parthia to be overthrown by a usurper who denounces the peace treaty with Antiochus, attacks the Seleucid army when it’s on its way back from India, routs it and kills Antiochus himself.”
    “The consequences—” Chandrakumar susurrated.
    “Yeah. The Seleucid realm would very likely fall apart. It’s always on the brink of civil war. That should give the Romans a leg up in the eastern Mediterranean, unless Parthians eager to avenge the humiliation Antiochus handed them sweep east through the power vacuum, restoring the Persian Empire three and a half centuries before the Sassanians are scheduled to do so. What could come of that is anybody’s guess, but it won’t be the history you and I studied.”
    “This usurper … a time traveler?”
    Everard nodded. “We think so. Again, I’ve been told hardly anything. I get the impression the Patrol has clues to a small band of fanatics who’ve somehow obtained two or three vehicles and want to—I don’t know what. Lay a groundwork for Mohammed and the ayatollahs to take over the world? That’s probably farfetched; though the truth may be farther fetched yet. At any rate, an operation is under way to forestall them, without tearing up the continuum ourselves in the process.”
    “Caution, yes…. Of course I am ready to do whatever I can. Your role, sir?”
    “Well, as I told you, I’m a field researcher too, though my area is military, Hellenistic warfare to be exact. I’d intended to observe this siege anyway. It is more interesting than you care to admit. The Patrol ordered me to change my plans slightly, same as it did you. I was to come into town, contact you, and take whatever relevant information you’ve gathered during this past year. Tomorrow I’ll leave, make my way to the invaders, and en-list with them.

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