Only Us Two - Bazilfaye

What if Hiccup had left with Toothless on that fateful day before he was supposed to kill that Monstrous Nightmare? What if he and Astrid never went on that ride together on Toothless? Even though he never felt like Berk was his home, he still wants to protect it from the queen dragon that is controlling the others... Perhaps the only way to get Vikings and dragons living together in peace is to first stop the fighting, but can he and Toothless win by themselves? And will that really fix the problem?