Since the group seems to have settled on the "we need silver" to kill a werewolf
Are we talking about a severe allergic reaction to silver like in Underworld
Or are we talking about a supernatural creature and silver being a metal with mystical powers

Would a good blow from a silver mace to the head be lethal (supernatural) or would it take a silver Bullet in a vital area

Would a bullet in the arm or butt kill it because of allergic or mystical reaction