i went to the dragon spire cave and i said the words to that dragon and he stop breathing fire on me but i cant seem to give him anything or even walk past him...also i did put the letter in the thing at the door..how do i get past that dragon and do i give him anything? its not the same dragon as the one out side...so what do i do.....as far as the tunnle to where the dragon is in ...when i try to walk down it..it pushes me back..as if there was a wall there or something..help please

You need to be wearing the dragon armour. You get it from the king in the stout mines.