There were five hundred and seventy-two separately designated quadrants to the system. It would take too long for him to stand here and try to match them.
Obi-Wan studied the tunnel around him in frustration. The answer was here. Somewhere. There was something he wasn't seeing.
He closed his eyes, remembering the tunnel on Falleen. Had there been a clue there that he had missed?
In his mind, he saw the tunnel he was standing in and matched it to the one on Falleen. Something was different, he knew. What? Suddenly, he realized something crucial.
Vents.
The Senate water tunnel had no vents. Of course not. It had valves to regulate water flow.
The tunnel on Falleen had vents.
Obi-Wan bent forward and accessed the grid again. He saw on the menu that the air and water tunnels were stacked on top of one another. There were several linking passageways for workers to get from one to the other.
He pressed the key for the air tunnel quadrant nearest to where he was standing.
It was the same grid.
Obi-Wan realized then what he should have realized on Falleen. Zan Arbor had attempted to transmit the Zone through water to a large population. She had failed.
TRACK A EXPERIMENT VOIDED.
TRACK B EXPERIMENT BEGUN.
Track A had been transmission through water. It had failed. Four deaths were the result.
Track B had been transmission through air. Obi-Wan's conclusions thudded through his brain with sickening logic.
Zan Arbor and Omega knew he was expecting them to attack through water.
They had wanted the Senate water tunnels to be shut down.
It was their way in. And while the water tunnels were being searched, they would release the Zone into the air.
He studied the blueprint again, then whipped out his comlink as he ran. He could not get through. He was too deep in the system now.
He ran along the tunnel until he saw the light indicating a pass- through to the air tunnels. He accessed the door and rushed through, then jumped on a constantly moving platform that took him up to the air transport systems. Obi-Wan raced through a circular door into the air tunnel.
He remembered the blueprint perfectly. If he took a left turn, then a right, he would arrive in the main air tunnel. The one that went to the main Senate chamber.
He ran down the tunnel, his footsteps making no noise. Before long he heard a faint humming noise.
A speeder bike.
He took the next turn and saw them. Zan Arbor and Omega, traveling at low speed through the tunnel.
He accessed the Force and leaped, throwing himself through the air, straight at the speeder.
Chapter Nineteen
Obi-Wan hit the end of the vehicle and grabbed on to the edge of the backseat. The speeder lurched with the impact and collided with the wall in a shower of sparks.
In the pilot seat, Granta Omega took a backward glance and saw him. A look of rage transfixed his features into a snarling mask.
"Grants, watch out!" Zan Arbor screamed.
The tunnel curved and now the speeder was heading straight for the wall. Omega jerked the controls. The rear fishtailed wildly, tossing Obi- Wan back and forth. He scrambled toward the third seat in the rear.
Zan Arbor took out a blaster. Obi-Wan activated his lightsaber while she lifted it to aim. He swung, deflecting fire, but it was hard to hold on with one hand and he knew he wouldn't be able to do it for long.
"Faster!" she shouted to Omega. With the other hand, she took another blaster out of her belt. "Just drive!"
To his surprise, she did not aim the second blaster at him. Omega piloted the speeder bike closer to the walls of the tunnel, and she took aim at the side.
At the vent.
Obi-Wan realized she wasn't holding an ordinary blaster. It was likely packed with pellets. She was going to shoot into the vent. And right about now, if he remembered the blueprints correctly, they were on a direct line to the main Senate chamber.
"Get closer!" Zan Arbor screamed. She half-stood, half-crouched on the seat, lining up her shot, ignoring Obi-Wan for now. She would only get one chance at the vent.
But Obi-Wan was well aware that Omega had two problems: He had to get close enough for Zan Arbor to shoot, but he had to keep Obi-Wan off balance enough to prevent him from reaching Zan Arbor.
The Force hummed in the tunnel and around him. Time slowed down. Only a second remained until Zan Arbor would take her shot, but that second broke down into smaller pieces of time that Obi-Wan could use.
He could see the vent approaching. He waited until he knew Omega would have to get the speeder closer to the wall. At the moment Omega made the adjustment, Obi-Wan threw himself forward, knocking Zan Arbor off position.
With a swift, precise kick, Obi-Wan dislodged the blaster from her hand. It flew out, bouncing against the tunnel wall.
Zan Arbor crouched in the bottom of the speeder, her face contorted in a scream.
"Do it now!" she screamed at Omega.
Of course. Omega would have a blaster, too. He always had a backup.
Omega threw the speeder into reverse. It was careening now, almost out of control, but his arm was steady as he aimed the blaster at the vent.
Again, time moved for Obi-Wan just as he wanted it to move, with spaces in between the seconds for him to exploit. He reached over and pushed the speed lever forward. The speeder went into maximum velocity in resverse.
Obi-Wan was prepared, but Omega and Zan Arbor were thrown forward with the lurch of speed. Omega let go of the blaster. Obi-Wan reached up and snatched it out of the air, then tucked it into his utility belt.
Omega tried to push the engines into forward again, but the speeder finally protested and stalled. The engine cut out and the speeder spun crazily, then bounced on the bottom of the tunnel and slammed against the wall.
Omega was already jumping out as the speeder bike died. Obi-Wan leaped after him, but found himself suddenly contending with a dozen miniature seeker droids hammering blaster fire at him. Omega had released them from a compartment on the speeder even as it came to its final stop.
The first dozen were joined by another dozen. Then another. And, Obi- Wan saw in dismay, another. The blaster fire kept Obi-Wan moving, but he could not get anywhere. He had to leap and defend himself against the blaster fire while taking down the elusive droids, who were now between him and the two criminals.