After the death of her husband, Stoick, Lin Beifong gives birth and raises their son Haru/Hiccup to protect Republic City. From the day of his birth, Haru's destiny has been forever tied to the city.
The fanfic can be found on Fanfiction.net.
The Dragon Rider and the Avatar provides examples of:
- Adaptation Relationship Overhaul: Since this incarnation of Lin managed to find another man and get married, she is far less spiteful towards Tenzin despite their history, entrusting him with the title of godfather to her son, and later entrusting her son to look after Korra.
- Amazon Chaser: Stoick and Lin first meet when she is arresting him after Stoick stopped a mugging. Even when she insults him, he can't help but call her beautiful.
- Boomerang Bigot: Despite having been a Firebender, Dagur is devout and fervent in his role as an equalist.
- Child Prodigy: As a four-year-old, Haru managed to become a better Earthbender than most teenagers. It helps that his grandmother is Toph. He was also able to draw an impressive portrait of Lin from memory around the same time.
- Childhood Friend Romance: At a young age Haru and Asami were best of friends. When they got older they dated and Toph even wanted the two to get married, but they felt they were better off as friends.
- Deceased Parents Are the Best: Stoick died saving lives while Lin was still pregnant with their son.
- Distressed Dude: While Haru is unconscious in the hospital, Amon takes his bending. Amon has Heather and the other Equalists carry him out the window.
- Doomed Hometown: In this continuity, Berk was an Earth Kingdom island that self-destructed when its volcano erupted, leaving Stoick alone before making his way to Republic City.
- Hypocrite: While Hiroshi is a fervent, bender-hating equalist like his canon-counterpart, here he makes an exception with Haru because he saved Asami from the fire-bender that killed his wife. He even admits that he sees him like a son and that the only thing that makes him imperfect is his ability to bend. He still hates Mako for dating Asami, though.
- Mama Bear: After a bomb goes of in Haru's office and he is rushed to the hospital, Lin rushes to to see him despite being hurt herself. It took five guards to restrain her.
- Old Flame: Haru was in a relationship with Heather before he got with Korra. Asami states that Haru was infatuated with Heather to the point it became annoying. Heather ran away after Haru found out that she was using him to get police information, along with her "brother".
- Only Known by Their Nickname: While his canon-counterpart's actual first name is Hiccup, here it is just a nickname, his real name the more appropriate "Haru."
- Three-Month-Old Newborn: Hiccup had green eyes as a newborn.