his convulsing body in a hideous corona, and it reached out past him. Some corner of Aston's brain saw it coming, almost like a tide racing across a mudflat. Then it was upon him, and the universe vanished in an incandescent burst of agony.

Ludmilla saw the Dragon explode. She saw the sergeant major fall.
And she saw Dick Aston convulse as the edge of the neuron bolt hurled him to the ground in twitching torment.

The Troll exulted as humans died under the fire of his mech while his own chassis rumbled down the tunnel. Together, he and the mech would wipe the heavens clean and he would escape. He could always start again elsewhere, and this time he would finish his bomb before he did!
He was still in the tunnel when an alarm woke to clangorous life.

Ludmilla Leonovna planted her feet wide in a marksman's stance. Bullets cracked and whined about her, but she did not notice. Her face was wet, but she blinked her eyes furiously clear of tears. And then she reached for her blaster, drew . . . and fired in one clean, flashing movement.

Blue-white lightning etched the valley rim against the sky as the first full-power blaster bolt in Terran history struck home.
"Ground force battle screen has one great weakness." Ludmilla could hear the long ago instructor's dry, lecturing tone in her mind. "Unlike deep space battle screen, it cannot reach into other dimensions due to the Frankel Limit of a planetary body. Therefore, it cannot protect against an attack delivered through multi-dimensional space."
Eighteen hundred tons of explosive energy struck the combat mech's frontal armor, concentrated into an area only two millimeters across. Armor that would have withstood a ten-kiloton area blast was paper under that focused stiletto's fury, and the plasma ripped into its heart. It happened so fast the eye could not see it, the brain could not record it, and then there was only a mounting pillar of terrible fire as the war machine spewed itself into the heavens.

How?! How?! He'd killed the last of them himself!
But only a human from his own time could have fired that weapon, and that meant . . . that meant these primitives knew everything! The whole time he'd plotted and spun his webs, they'd known! They'd been searching the entire time, hunting him—waiting for him to reveal himself so their informant could kill him!
He writhed in exquisite torment. They knew, and there were too many