The graphics display had reproduced a perfect profile of the stream's winding course for her; a memory loaded straight from the security core Royan had burnt. It'd been built by the landscape team who had fashioned the manor's grounds; they had made the actual bed from fine, hard-packed sand, then layered it with long strips of worn limestone pebbles. The width was a near-constant four metres where she stepped in, with the water coming halfway up her shins. After a minute she managed to find the best rhythm for walking, not quite lifting her sole out of the water. At least they were going in the direction of the flow. Heat was draining out of her feet. Her toes were already numb.

Teddy held his hand up. "OK, people. Hoods on."

Eleanor reached back and pulled it over her head. A circle of skin around her eye sockets tingled briefly. The photon amp fed its monochrome image into her retinas, suit graphics confirming the neck seal's integrity. She breathed air through the filters, dry and metallic.

She took it as an offhand compliment that nobody checked to see if she'd fixed her hood properly.

The stream ran through a thick braided cassia hedge ten metres ahead, the dividing line between the sugar-cane fields and a broad tract of undulating meadowland. Eleanor saw a line of posts spaced seven or eight metres apart had risen up in front of the hedge, two metres high and featureless except for a small red light flashing away on top. The earth around them had been torn as they'd pushed their way up out of their recesses.

Her photon amp picked out a band of forest about eight hundred metres past the hedge. She didn't like to think about lugging the Rockwell all that way. And how far was the manor beyond the forest?

THREE HUNDRED METRES, the graphics told her, Oh well.

"Boundary," Teddy said. His voice was muffled by his hood filters. "Now is when it starts to hit the fan. OK, Suzi."

Both of them brought up their AK carbines. There was a bass stutter and the two posts on either side of the stream disintegrated. They switched their aim to the next pair.

In the end they took out eight before Teddy was satisfied. His arm signalled the advance.

Eleanor meshed the infrared into her image, alert for any sign of the sentinels. The function fuzzed the outlines a little, but she saw a couple of pink spots pelting away from the stream. Stoats, invisible before.

The meadowland here offered little or no cover. The grass was knee-high, laced with weeds and keck. Nothing had grazed on it for months.

Two hundred metres past the boundary markers and Teddy stopped them again. He plucked one of the smallest spherical grenades dangling from his waist and twisted the timer. "Down."