/sigh/ Alright, I know I said I'd update in two weeks. I am VERY, VERY SORRY that I didn't hold to that. I had major writer's block on Isabella's POV, and it took me forever to get through it. I'm also sorry it's so short for such a long wait; the next one will be longer, I promise! (no such promises about the wait, though. Might be forever, might be two weeks. I'd bet on longer than that, though.)

Also, an announcement: I've decided that this story is going to have several sequels, some of which may be crossovers. I would like some feedback on how many you'd be fine with reading. PM me, or (preferably) say in the reviews.

Sorry to spring this on you all like this! I thought it was better than telling you when this story ended, though.

Doofenshmirtz (First Dimension this time)' POV

Norm's distinctive metallic footfalls announced his presence. "Whatcha doin'?" he asked. Doofenshmirtz looked up from his inator long enough to glare at him.

"You know perfectly well what I'm 'doin',' Norm," he said. "Why are you asking me again?"

"It was for the benefit of the readers," Norm replied, apparently unfazed by his creators annoyance. "The last time you introduced your inator, the author ended the scene before the readers could see what it was."

Doofenshmirtz grumbled and got up from his work.

"That lazy bum," he muttered under his breath. "This..." he said, pausing for dramatic effect. "... is the Other Dimension-inator!"

As he finished his sentence, he raised his arms and tried to put on an evil smile. Unfortunately, it ended up looking more comical than anything else, and any remaining drama in the scene was destroyed when a mosquito flew down his windpipe.

"An Other Dimension-inator?" Norm asked, apparently not noticing or ignoring Doofenshmirtz's sudden coughing fit. "Is that anything like the one you built four years ago?"

"What are you talking about, Norm?" Doofenshmirtz replied when he managed to stop coughing. "This is the first of its kind."

"No, it isn't. You built another one four-"

"Alright!" Doofenshmirtz barked. "I'm sorry I asked. Geez, even when you're doing double duty as my nemesis and my assistant, you still talk too much.

"But-"

"Perry the platypus never interrupted me," Doofenshmirtz continued. "Is it too much to ask for you to do the same?"

Even though his face was painted on, Norm's expression seemed to drop.

"That's better," Doofenshmirtz said, and turned back to his inator. "Now, as I was saying before I was so rudely interrupted-" he turned to glare at Norm as he said that. "This is my Other Dimension-inator! I got the idea for it when I was in the library, reading up on my quantum physics. I read that our universe is composed of an infinite number of alternate dimensions, arranged in circles, with the energy flowing clockwise between each dimension in each circle. Each circle has an extremely large number of dimensions, and there are an infinite number of circles, stacked on top of each other. And since there are an infinite number of dimensions, anything that can happen will happen in at least one of them. Interestingly, not many people are aware that there are multiple circles; most are only aware of the circle our dimension is in.

"Now, I'm sure you're wondering, 'but Doof! This is all very interesting, but how can you use it to take over the Tri-State Area?'" He chuckled. "Well, I figure that somewhere among those infinite dimensions, there must be one with a planet made of solid gold." Norm raised his hand. "Save all questions for the end, please," Doofenshmirtz said. "Now, I am going to find this planet, sell the gold, and use it to buy the Tri-State Area!" He laughed maniacally as he finished his evil monologue. "Alright, I'll take questions now."

"I have a concern," Norm said. "Wouldn't injecting such a large amount of gold into the world economy immensely devalue all other gold and indirectly destroy the world economy?"

Doofenshmirtz waved Norm's concerns away.

"Nah, gold always holds it's value. I read that in a financial magazine somewhere. Anyways, what say we give this baby a test run?"

"Did you put the self-destruct button in?"

"What? Of course I did, Norm! What kind of inator would be complete without one?"

"But-"

"Silence!"

Doofenshmirtz walked over to the Other Dimension-inator and pushed a button on the control panel. It buzzed and there was a brief flash of light, which dissipated almost instantaneously.

"It's the self-destruct button!" Norm exclaimed. "The entire inator is wired through it. That's why it isn't working."

"Oh, suddenly you're an inator expert now, are you?" Doofenshmirtz asked sarcastically. "And how might you know that?"

"When you built the first Other Dimension-inator, two kids-"
"Right, yes, the first Other Dimension-inator I made four years ago. Never mind."

He sighed.

"If it'll make you shut up, then fine, I'll take out the self-destruct button. After that, I can start the real repair work."

Five Minutes Later

Doofenshmirtz held a red button labeled "self-destruct" in his hand. He held it up to Norm and said "There. Are you happy now?"

"Yes. The Other Dimension-inator should function perfectly now."

Doofenshmirtz rolled his eyes.

"Whatever you say, Norm, whatever you say."

He pressed the activation button again and stood back to watch it fail. It made the same buzzing noise as before, but this time a thin line of green light snaked out like poison gas. It stopped in front of the Other Dimension-inator and began swirling together into a green disk. As it grew larger, it grew clearer, too, until it grew completely transparent, showing a purple-colored room.

"Well?" Norm asked. Doofenshmirtz shrugged him off.

"Yeah, you were right," he said nonchalantly. "It was bound to happen eventually."

Again, without changing his expression, Norm looked crestfallen.

Taking care not to touch the edges of the portal, Doofenshmirtz stepped through. Once he was through, he stopped and gasped in amazement.

Isabella's POV (again, First Dimension now)

I leaned over my Second Dimension self's shoulder to see what she was looking at. There was a brass plaque with the word "teleporters" embossed on it with an arrow under it.

"You know, it really shouldn't surprise me that they have those here," I said. "Phineas and Ferb built a set of these last year."

My Second Dimension self didn't immediately respond. She walked over to the next shelf and leaned around the corner. She came back with a grin on her face.

"So, you could operate one, right?" she asked.

Phineas looked nervous at her question.

"Ummm..." he said. "Well, maybe. But I'm not sure how much control I can exert over the jump with a system I'm not familiar with. If they have one similar enough to the ones we built, I might be able to work it."

"We'll worry about that when we come to it," she replied, then grabbed him by the sleeve and pulled him over to the shelves.

I felt a stab of jealousy. Phineas was mine. It didn't matter that she was me; he was mine. No girl besides me was allowed to lay a finger on him. Not even another me.

Of course, the fact that she was me probably also meant she had no more chance with him than I did. Still, I followed with one eye on her.

Since I'd already seen the rest of the warehouse, this particular section didn't seem all that impressive to me. Like all the others I'd seen, this shelf was piled high with mysterious gadgets. Some looked like the teleporters you might see in Space Adventure; others looked like something that had fallen off a UFO.

"Do any of these look familiar?" my Second Dimension self asked Phineas. He looked around the shelves until his face lit up and he shouted "There! That's the one we built last summer."

I followed his gaze. Close to the base of the shelf, there was something that looked like Phineas and Ferb's teleporters from last summer. After the Beak suit, this didn't really surprise me. It just confirmed what I'd already suspected: whoever the O.W.C.A. was, they'd been keeping tabs on us.

"They've been watching us..." I said.

"When this is all over, we really need to see what these people want with us," Phineas replied.

The other me pulled the teleporter off the shelf. In the distance, there was the sound of a solid metal door being torn off its hinges and flung through several shelves of advanced tech.

"Crud," she said. "They've made it through. We need to get this working and find the-"

She cut herself off suddenly. She looked down at the teleporter and her brow furrowed in thought.

"Baljeet," she called out. "Do you still remember the identification code for the diamond cutter?"

"Beta-3-CB-50194," he recited. She shoved the teleporter in his face as soon as he started talking. I saw that it had a little LCD display on it, like the kind you see on cheap calculators, and a really weird keyboard.

"Alright, punch that in," she said. "I think it's been modified to take you to items in the warehouse."

He took it nervously.

"Are you sure about that?" he asked. "Because if you're wrong, it is possible that we will be teleported into a wall or into space or something."

The sound of hundred of animal feet could be heard just around the corner.

"There's no time to worry about that!" the other me exclaimed. "The agents are almost here!"

Baljeet typed in the code and looked away as he hit the activation button. There was a brief flash of light and in the space of a moment, we'd gone somewhere else.

This would have impressed me more if Phineas and Ferb hadn't already done it about twenty times already. I looked around us. Wherever we'd gone to, it was still in the warehouse, and didn't really seem all that different from where we'd just been.

No. There was one difference. The shelves were empty. In the teleporter aisle, they'd been filled to bursting. There wasn't a single item on the shelves here.

"Is there something wrong with the teleporter?" I asked. "No," Baljeet said. He pointed behind me and said "Look over there."

I looked where he was pointing. There was something I hadn't noticed; a white crate that seemed to blend in with the shelf. It was easy to miss. In raised metal type, the serial number "Beta-3-CB-50194" was visible.

Baljeet walked up cautiously and put a hand on it. There was a beep and a click and the top of the crate slid away.

No one moved.

The sides of the crate collapsed away. The one Baljeet was facing fell on him, and he only barely caught it and avoided being crushed. With a grunt of exertion (which sounded pretty weird coming from him), he pushed it off to the side.

The diamond cutter honestly wasn't that impressive. It looked like a camera tripod with a circular pod where the camera should be. I assumed that was where the diamond went.

Second Dimension me fumbled with her satchel for a moment and pulled out the diamond to be cut. She walked up to it, opened the pod, and gently placed it within. When she closed the pod, it started emitting a low hum, like the heel of a sock held against a moving treadmill.

"Alright," she said. "Now there's nothing to do but wait."

"How long are we going to wait?" I asked.

"As long as it takes."

It's done! Finally!

Many thanks to the following for reviewing:

fan-like-irving: Thanks! I liked the chapter, too.

Lucy Case (guest): Well, I'll try to update soon. I can't make any promises about Phineas-2, though. Sorry!

Sleeping Kangaroo: Yeah, I know I kind of changed it on you at the last minute. I thought this ending was better than anything I had before, though.

Nehamee: I know! I can't wait to really get into the rest of the story.

14AmyChan: Nope, not invisible! Just gone.

FanFicCriticTheThird: Thanks. I thought the current reference was a bit geeky, but I thought it worked well, so I kept it.

And, to all of you who are following but not reviewing:

PLEASE, PLEASE, PLEASE REVIEW! I'M BEGGING YOU HERE! IT IS VERY, VERY IMPORTANT TO MY SENSE OF SELF-WORTH!