possible.
He looked up again to scan their surroundings. The first shift had taken them back to the time of one of the over-floods: two to ten years. This second shift had brought them back to the time just after the new sea wall had been built and the land area enclosed by it reclaimed. Tack had seen documentaries about the furore the project had caused, reclaiming land considered by all insurers as unsafe because of the chances of over-floodâa prediction subsequently proved to be trueâand therefore a place deemed by all developers unsuitable for any sort of building. The project had cost millions, and millions more as it had rendered useless many of the thermal towers, which required sea water to operate. And this had all occurred half a century before Tack himself had been a twinkle in his creatorâs test tube.
âIt would be inadvisable to go further,â Tack warned the girl.
She looked at him with her eyes wide, panicky. With slow deliberation Tack squatted down before her, making himself appear less threatening. He wondered if she had any idea what she was doing. He inspected his own injured
limb and noted that, even though his hand was still bleeding, the wound in his wrist had sealed around the thorn. Distraction. Trying to exude calm, he rolled down his sleeve and looked at the girl.
âYou go any further back and this place will be under ten metres of sea,â he told her.
She glanced around then pushed herself upright. Her clothing pulled up dry mud with it; was packed with the stuff. She pulled her blouse out of her pelmet and flat pieces of mud fell out, contoured on one side to her body, as if she had been lying in it as it dried. Tack felt no confusion about this. Land levels change through time, she had travelled, the dry mud had been displaced by her body. It all made perfect sense to him. What did not make sense was why the trees and other parts of the landscape had not been dragged along too. Why her clothes, him, his clothes?
âHow have you done this, girl?â he asked, expecting no coherent answerâshe still looked bewildered, probably not yet grasping what was happening. Certainly all this had been caused by the object on her arm, about which he knew only his DOâs instructions: Come back with it, Tack, or donât come back at all â¦
âMy name is Polly.â
Tack considered for a moment. It was always best not to use the name of a potential hit, not to consider them as anything more than disposable. He considered what he should do now: a swift head shot would prevent her doing anything more, and he could next cut the object from her arm. But what then? He had no idea how to operate the thing, and suspected that she was only doing so at an instinctive level.
âYou have not answered my question,â he said.
âYouâre going to kill me. Why should I?â
Tack nodded and stood up, stepping closer to offer her his hand. âYou must take us back ⦠you must take us forward again.â
âWhy the hell should I!?â
She rolled and came to her feet, backing away from him. Observing her expression, he was surprised at the sudden intelligence he saw there and realized he had little chance of gaining her trust. There was only one option: he must retrieve the object and learn how to use it himself. Stepping forward, he drew his seeker gun from its chest holster. Momentarily the controls snagged on his damaged clothing. He saw her take a deep breath and close her eyes.
âNo!â
He fired, realizing as he did so that, in snagging the gun, he had switched it
back to seeker mode. The bullet shot out, dropping its casing even as it left the barrel, opening its ceramic wings to swerve itself away to one side of her. Swearing, he slapped it back to manual. Then one moment he was sighting on her forehead, and the next moment his lungs were filled with brine.
Water pressure closed over him like a vice and he did not know