*This begins after the Viggo fiasco. You are a mysterious person always wearing armour you made from the scales of your dragon (which you can pick ANY dragon you wish) you were well known as a brilliant fighter and can tame any dragon. You lived in a dragon island filled with fog so thick no matter where you go you'd get lost and mostly your ship destroyed by all the spikes surrounding the island in the fog, it's completely uncharted making it a safe haven for dragons (you can decide if night fury's live on that island or not ^^). One day the riders were scouting and exploring trying to find new islands and dragons to protect from Viggo, but in the process accidentally going into the fog thanks to the twins curiosity after they saw a large shadow in the fog and due to them being so spooked Hiccup believed them.*