I thought it would be a good idea to give some information before the story starts. That way somethings aren't confusing.

Setting: 

This takes place in the 2nd century, the year 1020 to be exact. A few months after HTTYD 2 and 4 years after Brave. Everything that happened up until HTTYD 2 and Brave are basically the same.

Character Ages and Height:

Fergus: 49; 6 ft 10'

Elinor: 41; 6 ft 4'

Valka: 41; 6 ft 3'

Lord DingWall: 66; 5 ft 1'

Hiccup- 21; 6 ft 1'

Merida- 20; 5 ft 8'

Astrid- 20; 5 ft 9'

Fishlegs- 19; 5 ft 9'

Snotlout- 20; 5 ft 6'

Ruffnut and Tuffnut- 19; 5 ft 9'

Heather- 20; 5 ft 8'

Eret- 25; 6 ft 3'

The Triplets Hamish, Harris, and Hubert- 9; 4 ft 6'

Young Ryan Macintosh- 20; 6 ft 5'

Young Callum MacGuffin- 21; 6 ft 7'

Wee Boyd Dingwall- 19; 5 ft 7' ( He got a major growth spurt over 4 years.)

Aileas MacGuffin (OC)- 20; 5 ft 6'

Catriona and Iseabail DingWall (OC)- 18; C- 5 ft 8'; I- 5 ft 7'

Kirsteen Macintosh (OC)- 19; 6 ft 1 & 1/2' 

Lillias Macintosh (OC)- 9; 4 ft 4'

Graeme Macintosh (OC)- 10; 4 ft 8'

Minor Inclusions:

* Heather is included because I just felt like she deserved more recognition since most people forget about her. My headcanon for why she wasn't even mentioned in HTTYD 2 is because she was busy running the Berserkers with her brother and the Hiccup didn't have any time to ask them for help. 

* Seeing as this is a crossover, Stoick and Valka and Fergus and Elinor were friends when they were younger.

* I added some more children for the Lords, since they all mentioned the Young Lords as either their oldest sons or only sons, so they could have younger brothers and sisters.

* The decided to give the Young Lords names, because it would be awkward to just refer to them as their titles the whole time. 

* Hiccup's birthday happened in between the second movie and this story which is why he's slightly older.

~~~ If there are any other questions that won't be revealed in the story or just things that need some clarification, I'll answer them here. I hope you enjoy the story!~~~