Vulkan hit the earth fifty metres from the nearest conduit. He was in the darkness outside the installation, and the searchlights were all trained on the departing gunships. The rumble of industry and the bedrock groans it elicited from Caldera had covered the sound of his impact. He crouched in the small crater of his landing, motionless as a boulder, and waited. The conduits rose from the rock for twenty metres, then ran straight into the nexus. Its near wall was half a kilometre away. He caught glimpses of the ork forces mobilising for its defence as they passed underneath the conduits. Their numbers were difficult to gauge from his position, but he knew they would be high, and the physical defences of the nexus would be considerable. The orks had devastated a continent to keep him from the rift. The most sensitive point in the canyon would be protected like nothing else in the system except the attack moon itself.
The Thunderhawks passed from his sight. The wait stretched. Vulkan was patient. He could wait centuries for the fated moment of action. On this night, though, he felt the impatience of anger. The moment of Caldera’s salvation approached, but still the planet bled, still the monstrous act of engineering continued.
Over the centuries, Vulkan had not been unaware of the currents at work in the Imperium. The divisions, the corruption, the Emperor’s dream turning black with ash. Vulkan’s disgust vied for pre-eminence with his grief. When Terra called for help, it was hard for him to hear his Father’s voice. He heard the cries of politicians, of petty connivers and their toxic power games.
But the orks had returned to Ullanor. That was grave beyond the comprehension of any Terran mortal.
Then there was Koorland. In his voice, Vulkan heard something better than the squalling of the High Lords. He
So Vulkan waited, and he prepared for the final battle for Caldera, and the greater war that waited beyond.
The Thunderhawks dropped the squads of the Last Wall at the northern end of the installation, flew on, then turned back to provide air support, joined by Hemisphere in the
The wall was high and many metres thick. It was a patchwork of iron, plates and girders slapped together with speed and so much excess that the barrier would have stopped almost any artillery barrage. The Ascia Rift narrowed again here, and the ground rose steeply, choking off the canyon for several kilometres before opening up again. A large force would be caught in a bottleneck, movements hampered, working against itself.
Against the squads of the Adeptus Astartes, the wall was worse than meaningless. It was a liability. They punched their way through its base with melta charges. The Thunderhawks and the Storm Eagle hammered its ramparts with assault cannons, tearing apart the first of the ork defenders. The gunships strafed the wall repeatedly, holding the greenskins’ attention and preventing them from dealing with the threat below. In less than a minute, the Space Marines were inside the wall, out of reach of the enemy. The cannon fusillades continued, drawing the horde to that point, to the visible threat, away from the control nexus.
‘Minimise the damage to the wall,’ Koorland ordered the gunship pilots. ‘We want to keep it intact.’ It had been built to keep attackers outside the facility. Now it would keep the orks inside.