Another Nightmare book 1

Gobber couldn't convince Stoick to let Hiccup into the ring for dragon training, but situation gets complicated, when Hiccup faces a Monstrous Nightmare during a raid again. Except this time things go very differently thanks to certain black dragon. Over time an unbreakable bond is formed between two lonely souls.

Serendipity (Hiccup x reader)

On a rainy day it is normal for a lightning to strike and the thunder to follow it some seconds later. But what happened after the thunder is not what you anticipated.