sentences:  This meant that script editor Douglas Adams, aided by Graham Williams, had to perform a complete rewrite of the story over the course of a weekend.According to Adams, Graham Williams "took me back to his place, locked me in his study and hosed me down with whisky and black coffee for a few days, and there was the script".The revised script, now titled "The Curse of the Sephiroth", was credited to "David Agnew", a standard pseudonym used by the BBC and which had been previously used on "Doctor Who" for the season fifteen serial "The Invasion of Time".