23 Home of the Brave » Dark AU; sequel to Nothing Civil About War and Glorious And Free. The war is beginning, and everyone must work together to keep the Council from taking Canada in addition to America. Isabella and Colin have a mission in America, while an unexpected source of help arrives, Adyson joins the fight, and Ferb and Phineas keep an eye on things. The Council won't just give up, though...
Phineas and Ferb, M, English, Sci-Fi & Adventure, chapters: 14, words: 55k+, favs: 14, follows: 14, updated: 8/31/2017 published: 7/30/2017, [Isabella, Phineas] Ferb, Irving
28 Glorious and Free » Dark AU; Sequel to Nothing Civil About War. Phineas, Ferb, and Isabella have escaped to Canada, but the newly-reunified America is looking for new lands to conquer and enslave. Maybe an old friend and a new one can help them replicate Isabella's biomechanical implants to help defend their new home? However, General Archer isn't giving up on them that easily...
Phineas and Ferb, M, English, Sci-Fi & Adventure, chapters: 13, words: 55k+, favs: 22, follows: 22, updated: 5/20/2016 published: 4/22/2016, [Isabella, Phineas] Ferb, Holly
46 Nothing Civil About War » Dark AU. The Second American Civil War is drawing to a close. Isabella is a biomechanically-enhanced assassin on the losing side. Phineas is a researcher who purchases her at a slave auction in an attempt to make up for the deaths he's caused. Now he's given the job of finding the last enhanced soldier - the person who killed his father - not realizing that he lives with her.
Phineas and Ferb, M, English, Sci-Fi & Adventure, chapters: 15, words: 56k+, favs: 53, follows: 39, updated: 11/14/2015 published: 8/9/2015, [Isabella, Phineas] Ferb, Holly
6 Madness Takes Its Toll » It's time for the annual Skin Horse oversight review of OWCA's use of uplifted animals, which means Perry gets a certain talkative samoyed as a companion for the day. Meanwhile, a sudden breakthrough means there's three mad scientists living on Maple Drive, and Dave and Helen are called in to provide advice. (P&F crossover with Narbonic and Skin Horse.)
Misc. Comics & Phineas and Ferb, T, English, Humor & Sci-Fi, chapters: 6, words: 9k+, favs: 7, follows: 4, updated: 8/1/2015 published: 7/27/2015, [Isabella, Phineas] Ferb, Perry
4 Shore Leave Isabella has finally written the story where Anna and Kepheus get together, just before Phineas comes over for a special date. Is she trying to drop another hint? Another in the Adventures of the ASV Hornet
Phineas and Ferb, T, English, Sci-Fi & Romance, words: 4k+, favs: 9, follows: 5, 1/4/2015, [Isabella, Phineas] Ferb, Gretchen
41 The Padawan and the Smuggler » So, what happens after the kiss? Phineas and Isabella have to build their relationship in the middle of a galactic civil war. Set in the P&F Star Wars universe; sequel to Tales of the Centennial Chihuahua.
Phineas and Ferb, T, English, Sci-Fi & Romance, chapters: 4, words: 10k+, favs: 44, follows: 26, updated: 11/2/2014 published: 10/12/2014, [Isabella, Phineas] Ferb, Pinky
32 Tales of the Centennial Chihuahua » Isabella in the Phineas and Ferb Star Wars special is a very different character from the one we've gotten to know. How did a young girl become a famous smuggler and fierce rival of Han Solo? Let's take a trip into her backstory. (Note: not marked Crossover because it's specifically within the P&F timeline, not general Star Wars.) NOTE: Rating bumped to T from chapter 4 on.
Phineas and Ferb, T, English, Adventure & Friendship, chapters: 6, words: 11k+, favs: 29, follows: 23, updated: 9/7/2014 published: 8/1/2014, Isabella
34Metasyntactic Variations » A collection of unconnected short pieces, updated irregularly as inspiration strikes. Ratings no higher than T. Now Showing: No Returns or Exchanges. Amanda knows what she wants, but it's a lot harder for Candace to give it to her than it the little girl realizes.
Phineas and Ferb, T, English, Humor & Romance, chapters: 4, words: 2k+, favs: 24, follows: 29, updated: 8/9/2014 published: 1/24/2014, [Phineas, Isabella] Candace, Ferb
8 Ski Trip Sequel to Miles Apart. A misunderstanding has kept Ferb from speaking to Phineas for six months, and caused issues in his relationship with Gretchen. Now an upcoming ski trip is bringing issues to a head. Rated M for non-explicit sexual activity between teenagers.
Phineas and Ferb, M, English, Friendship & Romance, words: 5k+, favs: 18, follows: 7, 7/26/2014, [Ferb, Gretchen] [Isabella, Phineas]
14 Perking Up Based on a tweet by Dan Povenmire. Ferb, away at college, goes to explore the city and runs into a familiar face. Ferbnessa fluff.
Phineas and Ferb, T, English, Romance & Friendship, words: 3k+, favs: 68, follows: 15, 6/21/2014, [Ferb, Vanessa]
57 Miles Apart » What if Isabella never moved in to the house on Maple Drive? What if she was never in Troop 46231? What if she didn't meet Phineas and Ferb until high school? A tale of an alternate universe, where relationships are not what we're used to, because Phineas and Isabella grew up miles apart.
Phineas and Ferb, T, English, Friendship & Romance, chapters: 8, words: 13k+, favs: 53, follows: 29, updated: 5/30/2014 published: 5/23/2014, Isabella, Phineas, Ferb, Adyson S.
5 Just A Hero Phineas has an important errand to run on Memorial Day, and his sons decide to come along. They learn what the day is about, along with a bit of family history. In honor of those who gave their lives for their country.
Phineas and Ferb, K+, English, Family, words: 970, favs: 12, follows: 3, 5/26/2014, [Phineas, Isabella]
6 Gentlemen In Distress Phineas and Ferb have been captured by the evil Professor Poofenplotz, who wants to steal their fashion design skills. It's up to Candace and Isabella to get them back.
Phineas and Ferb, K+, English, Family & Friendship, words: 4k+, favs: 24, follows: 11, 5/17/2014, Isabella, Candace, Phineas, Ferb
7 Honesty At the end of Phineas the Fireside Girl, Phineas has barely managed to regain Isabella's friendship. But an apparent leak from the meeting he was at may cause all his efforts to be in vain, and kill Ferb's new relationship with Adyson in the process. Will their relationships survive?
Phineas and Ferb, T, English, Friendship & Romance, words: 2k+, favs: 21, follows: 10, 4/28/2014, [Phineas, Isabella] [Ferb, Adyson S.]
12 Phineas the Fireside Girl Isabella and the Fireside Girls troop are off initiating new members today. Phineas is dying to find out what's going on. How far will he go to learn their secrets? Meanwhile, Doof has been doing some light reading... Trope bingo: genderswap
Phineas and Ferb, T, English, Friendship & Hurt/Comfort, words: 5k+, favs: 29, follows: 9, 4/19/2014, Isabella, Candace, Phineas, Ferb
5 Curfew Truman Zanotto is waiting up for his seventeen-year-old daughter, back from her date with Raz. Nothing to worry about, of course. Until she gets home.
Psychonauts, T, English, Family & Romance, words: 1k+, favs: 33, follows: 14, 3/23/2014, [Lili Z., Razputin]
27 Let The Punishment Fit The Crime » 10 years after she moved away, Susie Derkins starts college in the city where Calvin lives. A couple chance encounters later, and Calvin helps her out of a tough spot...maybe now she can do a favor for him.
Calvin & Hobbes, T, English, Friendship & Romance, chapters: 4, words: 6k+, favs: 77, follows: 22, updated: 3/17/2014 published: 3/9/2014, [Calvin, Susie Derkins] Mom
9 Just A Stuffed Tiger Calvin wakes up in a hospital bed with no memory of his past. A woman claiming to be his mother says he hit a tree in his toboggan and hurt his head. And everybody gets real worried when he talks about his stuffed tiger... Trope bingo: amnesia
Calvin & Hobbes, K, English, Family & Hurt/Comfort, words: 1k+, favs: 63, follows: 14, 3/7/2014, Calvin, Hobbes, Susie Derkins, Mom
28 The Doofenshmirtzes » A series of short pieces examining Heinz and Charlene Doofenshmirtz's relationship, from engagement to divorce. Part Four: The Naming of Things, where Vanessa learns a couple explosive new words.
Phineas and Ferb, T, English, Romance & Family, chapters: 4, words: 3k+, favs: 13, follows: 11, updated: 2/17/2014 published: 2/14/2014, [Dr. Doofenshmirtz, Charlene] Vanessa
5 Making It Work At the end of It's Complicated, Phineas and Isabella got together again in Boston. Now, they need to balance renewing their relationship with the demands of college life and the lack of privacy involved in shared dorm rooms. Making it work may be harder than they'd thought. Rated M for language and nonexplicit sexual conduct. Trope bingo: virginfic, first time/last time.
Phineas and Ferb, M, English, Romance, words: 9k+, favs: 26, follows: 11, 1/25/2014, [Isabella, Phineas] Ferb