Ive gotten into it before, u know the one in the sewer, but not this time. Where do i get the key from the guard i kill cause i used a dragon breath and might have incenerated his belongings. Is that it or is there an other way! Help!!!!!!

You get the key from Tazok in the Windspear Hills. It's called the sewer key. Dragon's Breath might have destroyed it but I don't believe that it does that unless the person is frozen. Use your TAB key to see if it's on the ground.

Alright so right now im in Firkraggs layer and once i kill tazok i go back to the temples and then go in cause i havent fought him yet. Just making sure its not the sewer guy!