The layout of the controls was a model of simple design. Six screens on the forward wall of the cabin. No doubt they showed views in four directions plus up and down when they were turned on. A control panel with various dials and large switches. A black-enameled wheel on a central shaft in front of a leather-upholstered seat. Three more control levers sprouting from the shaft.
Blade sat down in the chair and fastened the seat belt snugly around his waist. His first few efforts to control the machine would probably be a bit erratic. He didn't want to be splattered all over the cabin if the thing turned over or started doing loops. Then he examined the switches and levers more closely.
One was most likely the main power control. The dial above it glowed silvery blue for about a quarter of the way across its face. Blade left that one strictly alone for the moment.
Of the three levers on the control column, the bottom one had a purple button on top. Blade left that one alone too. The color suggested it might be the firing button for the machine's ray-weapon.
Of the other two, one had a silvery zig zag on its black handle. Blade had to study it for a while before he realized that the silvery zigzag looked like a stylized metal leg. It would be the control for starting and stopping the machine's four metal legs. The computer probably took care of controlling their movements on a continuous basis.
Probably. Blade wished he didn't have to use that word so often. But what else to do? It would be silly to press the wrong button and blow himself and the machine all over the plain. But it would be a damned sight sillier to sit here doing nothing, after going to so much trouble to get into the machine in the first place!
Blade grasped the leg-control lever and wiggled it gently. it would not go forward or sideways. Even more gently he pulled it back. A shudder ran through the machine and the grating of badly lubricated metal echoed in the control cabin. The machine shuddered again, then lurched upward with clanking and clashing noises as the legs extended themselves. The machine settled down again as the legs bent. Then it rose and fell in a steady, slightly wobbling rhythm as the legs settled down to «walking» across the plain.
Blade took his hand off the lever. It made no difference to the steady gait of the metal legs. He leaned forward, found the switches to activate the screens, and turned them on. The screen overlooking the view of the city showed the smoke billowing still thicker and still higher, and the other two war machines still standing motionless. So far no one seemed to have noticed that the third war machine was walking off on its own. Blade suspected that he had better be ready to leave in a hurry when somebody did notice it.
Blade pulled the lever farther back. The speed of the legs increased, and so did the shuddering of the machine. It began to corkscrew around both axes at once. Blade pushed the lever forward. Obviously the machine couldn't walk too fast without risk of something vital shaking loose.
The legs slowed. Blade looked at the screens again. It seemed that the whole city must be aflame now, although Blade found it hard to believe there could be that much left to burn in the long-deserted buildings. The noise must be terrific, but none of it got through the hull of the war machine. It was like watching a particularly eerie silent movie.
Then Blade saw something gleaming and metallic flash near the base of one of the nearer towers. He watched more closely, not sure that his eyes weren't playing tricks on him.
They weren't. Something large and metallic was moving slowly out of the city toward the open plain. Blade kept his eyes on the screen. What was emerging looked like an enormous slab-sided box with a large square turret on top. Blade could see no other signs of weapons, tentacles, or legs. But to loom so large at this distance, the new arrival must be three or four times the size of the war machine.
One thing was certain. It was time for Blade to try operating the antigravity and find out just how high and fast this war machine would go. He didn't want to have to learn with somebody shooting at him.
He bent forward, and one long arm reached out to the lever under the large dial to the right of the control column. It was at the bottom of its slot. Blade took a firm grip on it and pushed it upward.
Instantly a new humming and vibration filled the cabin. Then a light over the large dial on the left side, the power dial, lit up. The machine seemed to heave itself upward, then sag down again onto its legs. Somewhere a warning signal sounded with a fast, angry beep-beep-beep-beeeeeee that swiftly rose to an ear-torturing screech.
Blade pulled the lever back down. Instantly the signal died away and the light over the main power dial went dark. Blade flicked his eyes across the control panel, then relaxed. What he had done wrong was almost childishly simple. He hadn't realized that lifting the machine on its antigravity might take more power than walking it on its legs.
He reached for the main power control and slowly opened it until about two-thirds of the dial above glowed blue. Then he grasped the lift control a second time and pushed it upward.
Again the war machine heaved itself upward. But this time it went on rising slowly. On the screens Blade saw the ground slowly dropping away and the dark smashed-down trail the machine left in the grass behind it.
Blade let the machine rise until it was about thirty feet above the ground. Then he inched the lift control back down until the machine stopped rising and hovered as steadily as a rock.
Blade turned back to the screens. The big square machine was now well out from the city. It seemed to be moving slowly and steadily toward the center of the triangle that had been formed by the three war machines. A second large machine was emerging from the city. The turret on top of the first one was now clearly visible. It bristled with antennae and lenses. In the center of one side was a large black tube.
Blade decided it was time to test out his machine somewhat more. He didn't like the purposeful way the two big machines were moving out from the city. If they were armed in proportion to their size, he didn't want to play sitting duck for their weapons.
The bottommost of the three levers on the control column could only move horizontally. That made it the most likely candidate for sending the machine forward and backward. Once again Blade's hand gently closed on a lever and moved it. For a moment there was no sign or sensation of anything happening. Then, in the rearward-looking screen, Blade saw that the grass below was slowly drifting away behind him. He was on the move.
He fed in more power and shoved the speed control up farther. Now the plain rolled toward him at an increasing clip. He guessed he must be hitting close to thirty miles an hour. The machine's massive weight still kept it as steady in the air as if it were running on rails.
Blade took the control wheel firmly in both hands and twisted it to the right. The plain slid across the screens and the floor of the cabin tilted as the machine swung around in the same direction. Blade turned the wheel left. The machine swung back on course, then over to the left. Blade looked at the speed control, tempted to open it wider. He resisted the temptation. He didn't yet know enough about controlling this machine or its power.
A faint whistle sounded high overhead, from outside the machine. It rose in seconds to an ear-splitting shriek. Something trailing grayish white smoke plunged out of the sky and struck the plain a mile ahead. No explosion, only an enormous mass of red smoke rolling and boiling up. Moments later Blade's machine wobbled slightly in midair, then started to slow down of its own accord. The dance of the lights on the control board began again.