She orders him to read the letter aloud .
When they are gone , the Duchess shows Andrugio the phony letter ( supposedly written by Andrugio , but actually written by Lactantio ) .
Lactantio orders Andrugio to read the letter aloud .
When they are gone , the Duchess shows Andrugio the phony letter ( supposedly written by Andrugio , but actually written by Lactantio ) .