'Stupid inventions, stupid Phineas, stupid me! All my childhood I wanted to get Phineas's attention, and even NOW that I'm 15, I not manage to do that! So why to bother? I'm going to the past to change everything!' Isabella thought to herself. She going to the museum, where the time machine was in the last time she saw it. 'There it is!' She thought. 'From now on, my childhood will be awesome, without Phineas there and Phineas here and Phineas, Phineas, Phineas! I've got more things to do! And if this is not paid off in the future, then I'll not do it at all.' She thought. She sit on the time machine, and said, "Past, here I come!"

~~~~~~~~~~~~Whooop~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~Whooop~~~~~~~~~~~~~~~~~~~

~In the past

"Where am I? I mean, the 10 years old me?" Isabella said. She enter Phineas and Ferb's backyard, and stop. "Nobody's here." She said to herself, then she feel something on her skirt. "Wha-Hahahahahaha!" She scream, when she see a little baby touch her skirt. She then Realize, that this is Phineas...but this is a BABY Phineas. "Hallo! I am bineas! Hehe, you loog lige Izabela!" The little boy said sweetly. Phineas, even when he was a baby, he loves Isabella, So the little baby blush softly when the older Isabella look at him. "Oh, no! I travel to the past too much time, and I come to the time we were still babies! I need to come to another past." Isabella said, and run to the time machine. "Izabela?" Said the little baby, and then watch her Disappear.

~~~~~~~~~~~~Whooop~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~Whooop~~~~~~~~~~~~~~~~~~~

~In the other past

"This is it!" The 10 years old girl said herself. "This is the day i'm going to hang out with Phineas. ALONE!" She said, and then smile "I can do this!" She said, she almost open the backyard's gate, when she hear a voice, and stop.

"You know, he's going to build a huge robot dog, and eventually, you're go with Phineas AND Ferb to that movie." The voice said. Isabella frozen. 'This voice...' She thought, and then she turning around, to see HER, but bigger.

"Who-who are you?" Said the 10 years old Isabella.

"Isn't that obvious? I'm you! Only 15 years old." Isabella said to the little Isabella.

"What...what are you-I mean, I doing here?" The 10 years old girl said.

"I come to warn you." The older Isabella said.

"From what?" The little Isabella said.

"Come with me. Let's speak in more private place then here...Is mom home?" The 15 years old ask.

"No, she's in the work." The little one said.

"Ok then! Let's go home!" Said the older Isabella, and took the 10 years old girl's hand.

"Wait! But I wanted to..." She said, blushing, and pointer on the boys backyard gate.

"After I tell you some things, you'll not want to come here anymore...now let's go!" Said the 15 years old Isabella, and pulling the 10 years old girl toward their house.