The ground rose slightly into a ridge paralleling the base of the cone and changed from clay to a friable soil that must have been mostly volcanic ash. The forest here had been of tall trees spaced more widely than those of the stretch the task force had just traversed, but the firestorm had reduced them to much the same litter of ash and cinders.
The two tanks accompanying the combat cars halted on the ridge; the wake of debris they’d raised during their passage continued to roll outward under its own inertia. They immediately began punching Volunteer positions with their main guns. The panzers now far to the rear began to advance, accelerating as quickly as their mass allowed. They’d each shot off the twenty round basic load in their ready magazines and couldn’t use their main guns until a fresh supply had cycled up from storage in their bellies.
Mercenary artillery in Solace might weigh in at any time. The tanks’ tribarrels were tasked to air defense. With the wide sight distances here, that should be a sufficient deterrent. If it wasn’t, well, Huber had more pressing concerns right now.
His faceshield careted movement at the top of the cinder cone: the Volunteers were shifting calliopes from air defense sites in the interior of the ancient volcano to notches cut in the rim from which they could bear on the advancing armored vehicles. Huber adjusted his sight picture onto the leftmost caret, enlarging the central portion around the pipper while the surrounding field remained one-to-one so that he wouldn’t be blindsided by an unglimpsed danger.
The gun crew had rolled their multi-barrel weapon into position and were depressing their eight muzzles at the mechanism’s maximum rate. Huber locked his tribarrel’s stabilizer on the glinting target and squeezed the trigger.
Huber’s AI blacked out the 2-cm bolts from the magnified image to save his retinas. Instead of a smooth Thump! Thump! Thump! as the tribarrel cycled at 500 rounds per minute, it stuttered Thump! and a moment later Thump! Thump! again. The stabilizer adjusted the weapon within broad parameters, but Fencing Master was jolting over broken terrain with a violence beyond what the servos were meant to control. The software simply interrupted the burst until the gun bore again on its assigned target.
The calliope in the holographic sight picture—its iridium barrels gleaming against the frame of baked-finish steel and the taut-faced Volunteers crewing it—slumped like a sand castle in the tide. The impacts were smears of emptiness, but the image cleared in snapshots of destruction, headless bodies falling and white-glowing cavities eaten from the carriage and gun-tubes.
The target’s magazines detonated. The flash scooped the square-bottomed firing notch into a crescent five meters across. A mushroom of vaporized rock lifted from the site. Nothing remained of the calliope and its crew.
Blasts and gouts of lava spurted from a dozen places on the crater’s rim as combat cars raked the enemy with their tribarrels. Deseau and Learoyd both fired at the turret of an armored car which the Volunteers had held beneath the crater rim until the Slammers were within range of whatever weapon it mounted. Satellite imagery from Central cued the troopers’ AIs, so they were waiting with their thumbs on their triggers at the instant the armored car’s crew drove up a ramp into firing position.
The turret of high maraging steel blazed in a red inferno before its gun could swing on target. Internal explosions must have killed the whole crew, because they didn’t attempt to back the vehicle or bail out of it.
Deseau and Learoyd continued firing, eating away the rock to get to the car’s hull. They didn’t have a better target—other tribarrels had cleared the rest of the Volunteer positions—and they saw no reason to stop shooting at something that might possibly be useful to the enemy. A fireball of exploding fuel finally ended their fun.
Fencing Master bucked onto humped, barren ridges of hard rock. Layers of ash blown from the vent had formed most of the nearby landscape, but here magma had rolled out of cracks in the base of the cone and solidified. The steel skirts clanged and squealed, scraping showers of red sparks.