The three vehicles and their young passengers sped rapidly through the forest, the trees whipping past them at blinding speed. They approached and entered the passage tower without slowing or hesitating in the least, and in a matter of seconds they were flying through Lyoko's cyberstream, numbers flying by them. They came out of the tower in the mountains, and sped for the towers.
"How far is it, Jeremie?" Asked Yumi.
"Pretty far. Just keep going and you'll be there in a few minutes. Do you see any monsters?"
"They're probably all waiting for us at the tower." Said Ulrich. "But for now, lets just be glad they're not around."
"Hey..." Said Odd. "Do you hear something?"
They all stopped their vehicles and listened.
"Uh.. no." Said Yumi. "Those cat ears of yours can probably hear better than ours, though. What do you hear?"
"Sort of a... humming."
"I hear it too." Said Aelita. She scanned their surroundings, and then pointed, eyes wide. "Look!"
Small green pinpoints had appeared in the sky, and were growing fast. Soon features were identifiable, and it was horribly obvious what they were seeing.
"HIT THE DECK!" Shouted Ulrich. They threw themselves to the ground, just as the green disks screamed through the skies over them like a group of fighter jets. Just as fast as they had appeared, the flying saucers had disappeared over the other horizon.
"Flying saucers." Said Yumi. "They're heading for the school."
"Which means we have to find the second tower as fast as possible." Said Aelita. "Hey, wait, look! They're coming back!"
Ten of the fifty UFOs they had seen were approaching again, although not as fast this time. When they were close enough to see clearly, the hatches on the bottom opened up, and the laser cannons extended out.
"Look out!" Shouted Jeremie. "They're going to attack!"
"Let's go!" Shouted Ulrich.
They hopped back on the vehicles, and sped off in the direction of the tower, with their pursuers approaching fast. One of the cannons charged up, and fired. Ulrich swerved to the right to avoid it. It missed, but just barely, smashing into the ground next to him. It fired again, and this time Yumi and Aelita were the ones who had to avoid it. Yumi threw her fan and it sliced through the cannon, rendering it useless. But the UFO merely rotated so that one of the other eight was pointing at them.
"Hold on!" Shouted Jeremie. "You're almost at the tower!"
"Where is it Jeremie?" Shouted Aelita. "All we see is a big mountain!"
They flew around the mountain, but they saw no tower.
"Its there. You just have to find it. The activated tower has been hidden before."
The ten flying saucers started firing again at the kids, and this time they had to be careful about which way they dodged on they would just run into another laser. They were trapped in a deadly rainfall, as the saucers fired again and again.
But then, a misfired laser hit the side of the mountain, blasting a big hole in it. But instead of healing, like the land usually did, the hole stayed there. They could see darkness inside.
"The mountain! Its hollow!" Shouted Aelita.
"Quick! Get inside! The flying saucers won't be able to get us in there!"
They flew their vehicles up and into the hole. For a moment they were surrounded by complete darkness. Then, as the supercalculator was programmed to do, the inside lit up so they could see, even though there was no light source.
The mountain's inside was a giant cavern, with a rocky floor and stalgtites hanging from the ceiling. Against the back wall was the tower, being guarded by five Krabes and a Tarantula.
"We found it, Jeremie." Said Ulrich.
"Ok. Deal with the guards, and then it's off to the desert. Do it fast, because those flying saucers outside probably aren't going to give up so easily. They may try to blast their way in."
Jeremie was right. Outside, the flying saucers had at first waited for them to come out, but as their pilots became impatient, they started moving around the tower in a circle. Simultaneously, they charged up their lasers, and then fired, hitting the mountain with tons of force and causing the entire landscape to shake with the impact.
Inside, the shaking caused many of the stalactites to break off. One of them fell directly on to a very unfortunate Tarantula, killing it instantly.
"Well, that's one problem solved." Said Odd. "Five more to go!" He said, indicating the five Krabes with a grin.
"Yeah, yeah, lets get this over with." Said Ulrich.
They swooped down from the air, closing in on the Krabes. They looked up, then started firing. Odd expertly maneuvered out of the way, and started firing his own weapon, taking down two of the Krabes. Ulrich actually landed the overbike on the third Krabe, stabbed it, and took off before it exploded. Yumi was not so lucky with the monsters she was left to deal with. The first laser hit her off the overwing, then the second hit her as she fell, and it was game over for her.
This left Aelita with control of the overwing. She flew right over the Krabes and into the tower.
She parked it on the central platform and then rose up to the top. For the second time that day she entered the code, and outside the tower turned from red to blue. Ulrich and Odd dealt the last two Krabes a finishing blow, and then landed in front of the tower.
Meanwhile, Yumi was coming out of the elevator. She walked over to the computer and stood by Jeremie, looking at the screens.
"Did Aelita make it into the tower?"
"Yup. She's coming out of it right now. I just hope Odd and Ulrich can hold on for the rest of the towers."
"Relax. They haven't lost any life points yet."
"Yes. But we've got a bigger problem."
The flying saucers outside fired again, and sunlight suddenly poured through ten holes in the mountain. They saw one of the dark shapes move slowly past one of them.
"Jeremie! The mountain can't take much more of this! It'll collapse!"
"But we can't go back outside!" Said Odd to Aelita. "They'll blast us to bits!"
"Does that mean... We're trapped?" Said Ulrich, a look of disbelieving on his face.
"Unfortunately, yes." Said Aelita, looking up at the ceiling of the cavern fearfully.
The UFOs circled around and blasted again, shaking the mountain to its base. There was no way out.