(A/N: I'm having Internet problems so it might be awhile-say, a week or so-before I can post again. Till then, enjoy! P.S: The science in this is real, the circumstances perhaps less so.)

At that moment though, alarm bells rang out.

WARNING:INTRUDER ALERT.

"This is sooo typical of them."Ferb said.

"What do we do now?"It was Isabella.

"We move randomly, but keeping the same general direction."

"Is that an answer?"

"It is for me."

Phineas still looked weak. Ferb wondered if he should support him. Then he decided against it.

They were turning corners at breakneck speed now, trying to evade the robots. They turned another corner and-

"Shh...I can hear them."Phineas' voice was barely more then a whisper, so soft that Ferb could barely hear anything. They couldn't see much, either.

"Hmm...what do you reckon would be the stupidest thing to do right now?"Ferb sounded thoughtful, moving slowly.

"Uhh...run straight at them? But you can't seriously-"

"Then that's what we're doing. But first, catch." Ferb threw him a Taser. He pulled another one from his pocket, leaving his notebook there. It was the only thing his captors didn't take off him, and it was the only thing left in his pocket. He looked sheepishly at Isabella.

"Sorry, none for you.'" he said.

"That's okay. I think I'm just going to tag along." Isabella blushed furiously when she saw the palm prints she made on Ferb's face.

Ferb nodded. Then he turned his attention on Phineas. "You okay, bro? You sure you can shoot straight?"

Phineas looked stunned. "Ferb, I'm American. I was born to do this."

"And I'm British. Born to give you a good slap if you crack anymore wiseass jokes."

Suddenly they stopped. They could hear the robots, directly ahead. They found some cover behind some display cabinets, showcasing human bones. The display was clearly for a science lab, the solid-looking door of which was ajar just behind them.

"You sure about this?" Phineas asked Ferb.

"Yeah."

"Okay, wait for it..."

They were coming now. There was no mistaking that sound.

"...wait for it..."

Closer. Closer.

"...NOW!..."

The robots clearly weren't expecting a sudden attack, much less a sudden attack by two teenaged boys. Phineas and Ferb took it in turns to fire, one shooting while the other reloaded. Somehow they managed to evade all the lasers-

Ferb saw a robot, who was charging its laser, preparing to fire at-

"Phineas, look out!"

Phineas jumped neatly to the side as the shot hit the floor where he was standing and made a wide crack in it. They could see through the crack, see ceiling bits fall to the floor below it.

Yet they were winning. They couldn't understand it until a laser shot over their heads, not from in front-

-but from behind.

They were being sandwiched.

They made a break for it, rushing for the science lab, the door of which seemed ajar-

-but when Phineas pushed against it it didn't move. Instead, it slid open, the door disappearing into the wall, to reveal the science lab.

The trio ran into the science lab, barricading the door with every moveable object in the lab. Tables, chairs and anything heavy were thrown unceremoniously against the door. The fact that the door was solid oak didn't hurt, too.

Ferb turned to look around, sure there was another entrance to block, but there wasn't.

The lab was a dead end.

The robots must have realized they had barricaded the door, for a second later a glow of red could be seen on the corner of the door. The unmistakable hissing sound of a laser cutting through material filled the lab.

Still disbelieving, he searched the lab frantically, looking for a way out. A hidden lever. An air duct. Anything.

They passed by a big container of water and some lab apparatus when it hit Ferb.

Chemistry 101. Water. Alkali metal. Our way out.

Look for it, look for it…Ferb raced through the lab, examining all the cupboards and test tubes.

The metal cabinet was brought to his attention when he stubbed his toe against it. It proudly proclaimed SODIUM. But when he tried it, it was locked.

He jiggled his hairpin in the keyhole, at the same time shouting to Phineas and Isabella, "Phineas! Move that water barrel over there!" he said, pointing towards the door. "Isabella, help him!

They did as they were told. All this while, the laser was moving, moving, creating a complete turn around the door. When it was finished, the door would simply fall away.

Click! The lock gave, a hiss of air rushed in and Ferb reached inside the pitch-dark interior for the lump of sodium. Instead he found only thin air.

He was about to give up when his fingertips brushed against something. The laser was

He pulled at the lump of sodium and brought it out into the open.

When he got it out, even Phineas and Isabella couldn't help looking at it. There, in Ferb's two hands, sat probably about 500 grams of the metal. 500 grams for god knows what experiments, but half a kilo of explosive power.

The battering at the door brought Ferb back to life. The door would give any second-

This, thought Ferb, is gonna hurt.

Clutching the sodium, he stood as far away from the barrel as he could.

"When I say take cover, I mean get down to the ground and shield yourself as best as you can. Got it?"Ferb said.

They nodded.

'Alright, get ready..."

The robots destroyed. Ferb threw the sodium straight into the water.

"Take cover!"

At first, nothing happened. Then the water started to fizzle-

-everyone braced themselves-

-and the container exploded!

The robots were simply swept off their feet. The door was destroyed, sending pieces of wood everywhere.

Phineas and Ferb didn't waste a second. Thye jumped up and started firing.

The robots retreated into the corridor, past the crack they had made themselves.

Phineas and Ferb rushed out, but Ferb stopped himself and his friends. He picked up a squarish rod of wood which must once have been part of the door frame.

They then rushed out-

-and were greeted with laser blasts. Somehow all three remained standing.

For the second time tonight, Isabella's hand was dragged roughly by Ferb. He dragged Phineas along as well, using the pole as an awkward lance, charging the robots-

-they hesitated-

-at the last second, Ferb let the lance drop-

-and it fell neatly into the crack-

"Hang on-"

They held on to the end of the lance-

and, like a pole vault, soared over the robots!

They landed behind the robots, and there was no time to waste. They turned the corner-

They kept running, and Ferb felt something drop out of his pocket-

The three of them burst through a door and slammed it shut.

And not a moment too soon, for they could hear voices-

"Where are they?"

Then Isabella noticed that-

"Ferb's notebook is missing!"Sure enough, the familiar bulge was gone.

"What's this?" The robot's voice was cold and merciless.

Scanning...

"Ferb Fletcher's notebook." Right next to the door, as well.

"Enter room."

The robots opened the door-

-and there was no-one.

"Where are they?"

Ferb, Phineas and Isabella stole quietly out of another room.

They ran along the corridor, past the robots, deceived by Ferb's notebook.

They reached the end and came to the best thing Ferb could have asked for-an intersection of eight corridors.

"Pick one." Ferb was looking at Phineas.

Phineas dashed through the one to his left. Ferb and Isabella followed suit, making sure the door didn't keep swinging to prevent the robots knowing where they went. They didn't stop as soon as they were inside.

Turning tight corners, they just wanted to put as much distance as possible between them and the robots.

It was only after a considerable time that they slowed down to actually breathe.

"You're a genius, Ferb."Isabella looked with admiration at Ferb.

For once, Ferb didn't shrug modestly.

I make a good poker player.