In the first version, the wife picked up the draugr’s head. She issued a warning.
In the second version, the wife picked up the draugr’s head. The head gave a warning.
In the third version, the wife picked up the draugr’s head. They both give a warning.
In this veRsIon, the wife kilLS the̶̛̲͉͚̜̟̓͆͑̉̐̎̈͗̚͜ brother.