Author's note: Phineas, Ferb and Isabella are in the future. Enjoy!
"Hello, my name is Phineas, his is Ferb, my brother, and she is Isabella, my friend." Phineas told the man.
"Phineas, is it you? That means that you're me! You came from the time machine and bumped into me!" The man, who was Phineas, exclaimed in surprise.
"Yes, yes we did," Phineas answered.
Out of nowhere, another man ran towards the adult Phineas, shouting, "Phineas! Phineas! What are you doing h…" he was cut short when he saw the trio, "Is that me? I seem so quiet."
"Yes Ferb, that is you," the adult Phineas replied, "Come, let me show you your house and your kids."
"House? Kids?" the trio replied. "Yes, kids and house," the adult Phineas replied.
When they arrived at the house, they were awed at the magnificent sight. It was not a house, it was a mansion! There was a fountain, a swimming pool and a patio. Phineas and Ferb did not know that they were so rich in the future.
Phineas also noticed some children, some of whom he recognized. "Those three are my kids: Samuel, Benjamin and Rachel. Ferb's kids are those two: Jonathan and Rebekah. Candace also has three kids over there: Xavier, Fred and Amanda." The adult Phineas said, pointing to the children on the patio.
When the kids saw Phineas and Ferb, Samuel, Benjamin and Rachel shouted, "Hey dad! Hey uncle!" Jonathan and Rebekah shouted, "Hey dad! Hey uncle!" Xavier, Fred and Amanda shouted, "Hey uncles!"
Samuel then whispered into the adult Phineas' ear, "Hey dad, that girl looks like mom."
"Um, Phineas … … I mean me, do you have any of these items?" Phineas asked the adult Phineas. When he nodded, Phineas said, "Thanks!"
Phineas, Ferb and Isabella took the items but decided to look around the city first. Phineas saw a nice-looking gem and thought: Hmm, it is me and Isabella's fifth summer anniversary, I think I should buy this.
So Phineas bought the gem. After a while, the trio left for the present time.
Next chapter is about the evil guy doing something evil. Oh-no!