Well, Hiccup is very resourceful. He could use the environment around him to his advantage. If he is locked in a place, he might find a weak spot in the structure, like a loose board or a hole in the wall. And he could call for Toothless secretly. Toothless, being highly intelligent, could find Hiccup and rescue him. Also, Hiccup could befriend some of Viggo's minions and convince them to help him escape.
In a fanfiction scenario, Viggo might kidnap Hiccup out of jealousy. Hiccup has a special bond with Toothless, a very rare and powerful dragon. Viggo, who has always been obsessed with dragons, may be envious of Hiccup's connection. He kidnaps Hiccup to try and take Toothless for himself. He might think that by having Hiccup in his control, he can make Toothless obey him. He could also use Hiccup as a bargaining chip to get more dragons from Berk.
First, you need to have a clear idea of their characters and the setting. Then, think of an interesting plot that could involve both Hiccup and Viggo. Maybe start with a conflict or a mystery for them to solve together.
Well, it varies a lot in fanfiction. Sometimes Hiccup and Viggo become unlikely friends, while in others, they remain bitter enemies. The plot depends on the author's imagination and creativity.
You might have the dragons play a crucial role. They could sense Hiccup's distress and lead the others to where he is. Or, there could be a secret weapon or magic that the heroes discover to defeat Viggo and free Hiccup.
One great 'Merida x Hiccup' fanfic is 'A Meeting of Two Worlds'. It beautifully weaves their different cultures together. The story has them meeting by chance in a magical forest and then going on an adventure to save both their kingdoms. It's full of action and also some sweet moments between them.
I really like the fanfic 'A Different Kind of Friendship'. It starts with Hiccup and Snotlout being forced to work together on a project in Berk. As they spend more time together, they start to understand each other better. The writer does a good job of showing their growth as characters.
One characteristic is the exploration of their deep bond. It often delves into how they communicate without words, like their special connection that goes beyond the normal human - dragon relationship. Another is the adventure aspect. Writers may create new quests or challenges for them to face together.
One great 'hiccup x toothless fanfiction' is 'The Bond Beyond Words'. It beautifully explores the deep connection between Hiccup and Toothless in a new adventure. The author does an amazing job of capturing their unique relationship.
The unique combination of different universes. Hiccup is from How to Train Your Dragon, Jack from Rise of the Guardians, and Toothless is a dragon. Blending these different elements creates a really interesting and unique fanfiction genre.