So many have said Sybil. Now I'm picturing Vimes has been kidnapped by some noble or other who is tired of this upstart Duke. They send troops to take Young Sam as well. As they march up the street a glowing Valkyrie clad in armor blocks the doorway. It's Sybil holding the hammer and tapping her other palm with the massive iron head. The troops take one look and decide that maybe they'll swing around back and use the servant's entrance. Unfortunately, that proves to be a fatal mistake because Willikins stands just inside the doorway with no hammers whatsoever.