hed been there several times before , to ask if i was well ; hed watch me writhing on the floor it wasnt hard to tell id grind my teeth and glare at him his smile ever grew if i were free , id be killing him this , im sure , he knew but this time it was different from all the other times ; my friend , he said , with some regret , i think it may be time for you to know the truth of trolls and how they can be killed .