Since I've been talking about crossing over "Vinland Saga" with "How to Train Your Dragon" thought i wasn't sure what dragon Thorfinn can bond with at first, until the sudden remembrance of "Beautiful Shades of a Night Fury" and it's main character Nightshade hit me, like Hiccup, Thorfinn can also have a Night Fury friend, Of course before they meet Nightshade isn't fond with Humans, Nor is Thorfinn with Dragons. but one night (as this picture shows) their worlds are turned upside down.
What does anybody else think?
BSOANF, Nightshade (C) Dragondogfilmsg
Vinland Saga, Thorfinn (C) Makoto Yukimura
How To Train Your Dragon, Night Fury (C) Dreamworks, Cressida Cowell